1057044731 has 8 divisors (see below), whose sum is σ = 1064402640. Its totient is φ = 1049697792.

The previous prime is 1057044719. The next prime is 1057044763. The reversal of 1057044731 is 1374407501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057044731 - 2²⁶ = 989935867 is a prime.

It is a super-2 number, since 2×1057044731² = 2234687126669724722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057044431) 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 in 7 ways as a sum of consecutive naturals, for example, 306191 + ... + 309623.

It is an arithmetic number, because the mean of its divisors is an integer number (133050330).

Almost surely, 2^1057044731 is an apocalyptic number.

1057044731 is a deficient number, since it is larger than the sum of its proper divisors (7357909).

1057044731 is a wasteful number, since it uses less digits than its factorization.

1057044731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 1057044731 is about 32512.2243317802. The cubic root of 1057044731 is about 1018.6643838070.

The spelling of 1057044731 in words is "one billion, fifty-seven million, forty-four thousand, seven hundred thirty-one".