1051720032 has 192 divisors, whose sum is σ = 3172296960. Its totient is φ = 302131200.

The previous prime is 1051720027. The next prime is 1051720037. The reversal of 1051720032 is 2300271501.

It is an interprime number because it is at equal distance from previous prime (1051720027) and next prime (1051720037).

It is a super-2 number, since 2×1051720032² = 2212230051420162048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1051719990 and 1051720008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051720037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1867783 + ... + 1868345.

It is an arithmetic number, because the mean of its divisors is an integer number (16522380).

Almost surely, 2^1051720032 is an apocalyptic number.

1051720032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051720032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586148480).

1051720032 is an abundant number, since it is smaller than the sum of its proper divisors (2120576928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051720032 is a wasteful number, since it uses less digits than its factorization.

1051720032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1051720032 is about 32430.2333016585. The cubic root of 1051720032 is about 1016.9510490425.

Adding to 1051720032 its reverse (2300271501), we get a palindrome (3351991533).

The spelling of 1051720032 in words is "one billion, fifty-one million, seven hundred twenty thousand, thirty-two".