1051166420 has 48 divisors (see below), whose sum is σ = 2275801920. Its totient is φ = 407644416.

The previous prime is 1051166419. The next prime is 1051166449. The reversal of 1051166420 is 246611501.

It is a super-2 number, since 2×1051166420² = 2209901685071232800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051166420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80039 + ... + 92241.

It is an arithmetic number, because the mean of its divisors is an integer number (47412540).

Almost surely, 2^1051166420 is an apocalyptic number.

1051166420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051166420 is an abundant number, since it is smaller than the sum of its proper divisors (1224635500).

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

1051166420 is a wasteful number, since it uses less digits than its factorization.

1051166420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344 (or 12342 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1051166420 is about 32421.6967477028. The cubic root of 1051166420 is about 1016.7725810407.

Adding to 1051166420 its reverse (246611501), we get a palindrome (1297777921).

The spelling of 1051166420 in words is "one billion, fifty-one million, one hundred sixty-six thousand, four hundred twenty".