1051431904 has 12 divisors (see below), whose sum is σ = 2070006624. Its totient is φ = 525715936.

The previous prime is 1051431883. The next prime is 1051431907. The reversal of 1051431904 is 4091341501.

It is a super-2 number, since 2×1051431904² = 2211018097498130432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051431907) by changing a digit.

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 as a sum of consecutive naturals, namely, 16428592 + ... + 16428655.

It is an arithmetic number, because the mean of its divisors is an integer number (172500552).

Almost surely, 2^1051431904 is an apocalyptic number.

It is an amenable number.

1051431904 is a deficient number, since it is larger than the sum of its proper divisors (1018574720).

1051431904 is an equidigital number, since it uses as much as digits as its factorization.

1051431904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32857257 (or 32857249 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1051431904 is about 32425.7907228182. The cubic root of 1051431904 is about 1016.8581729840.

The spelling of 1051431904 in words is "one billion, fifty-one million, four hundred thirty-one thousand, nine hundred four".