1057515328 has 28 divisors (see below), whose sum is σ = 2221950852. Its totient is φ = 497653760.

The previous prime is 1057515323. The next prime is 1057515377. The reversal of 1057515328 is 8235157501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 364351744 + 693163584 = 19088^2 + 26328^2 .

It is a super-2 number, since 2×1057515328² = 2236677337909895168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057515323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484903 + ... + 487078.

Almost surely, 2^1057515328 is an apocalyptic number.

It is an amenable number.

1057515328 is an abundant number, since it is smaller than the sum of its proper divisors (1164435524).

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

1057515328 is an equidigital number, since it uses as much as digits as its factorization.

1057515328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972010 (or 972000 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 1057515328 is about 32519.4607581368. The cubic root of 1057515328 is about 1018.8155313938.

The spelling of 1057515328 in words is "one billion, fifty-seven million, five hundred fifteen thousand, three hundred twenty-eight".