1057146784 has 24 divisors (see below), whose sum is σ = 2083751460. Its totient is φ = 527940096.

The previous prime is 1057146767. The next prime is 1057146793. The reversal of 1057146784 is 4876417501.

It can be written as a sum of positive squares in 2 ways, for example, as 752295184 + 304851600 = 27428^2 + 17460^2 .

It is a super-2 number, since 2×1057146784² = 2235118645843085312, 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 1057146784.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7932 + ... + 46660.

Almost surely, 2^1057146784 is an apocalyptic number.

It is an amenable number.

1057146784 is a deficient number, since it is larger than the sum of its proper divisors (1026604676).

1057146784 is an equidigital number, since it uses as much as digits as its factorization.

1057146784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39592 (or 39584 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 1057146784 is about 32513.7937497303. The cubic root of 1057146784 is about 1018.6971652677.

The spelling of 1057146784 in words is "one billion, fifty-seven million, one hundred forty-six thousand, seven hundred eighty-four".