1051330920 has 64 divisors (see below), whose sum is σ = 3291131520. Its totient is φ = 268164864.

The previous prime is 1051330919. The next prime is 1051330927. The reversal of 1051330920 is 290331501.

It is a happy number.

It is a super-2 number, since 2×1051330920² = 2210593406696092800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1051330927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187699 + ... + 193218.

It is an arithmetic number, because the mean of its divisors is an integer number (51423930).

Almost surely, 2^1051330920 is an apocalyptic number.

1051330920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051330920 is an abundant number, since it is smaller than the sum of its proper divisors (2239800600).

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

1051330920 is a wasteful number, since it uses less digits than its factorization.

1051330920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380954 (or 380950 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 1051330920 is about 32424.2335298770. The cubic root of 1051330920 is about 1016.8256174778.

The spelling of 1051330920 in words is "one billion, fifty-one million, three hundred thirty thousand, nine hundred twenty".