1057094457 has 32 divisors (see below), whose sum is σ = 1482230400. Its totient is φ = 669247488.

The previous prime is 1057094429. The next prime is 1057094461. The reversal of 1057094457 is 7544907501.

It is a happy number.

It is not a de Polignac number, because 1057094457 - 2¹² = 1057090361 is a prime.

It is a super-2 number, since 2×1057094457² = 2234897382040249698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057094407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1932258 + ... + 1932804.

It is an arithmetic number, because the mean of its divisors is an integer number (46319700).

Almost surely, 2^1057094457 is an apocalyptic number.

It is an amenable number.

1057094457 is a deficient number, since it is larger than the sum of its proper divisors (425135943).

1057094457 is a wasteful number, since it uses less digits than its factorization.

1057094457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 1057094457 is about 32512.9890505318. The cubic root of 1057094457 is about 1018.6803570544.

The spelling of 1057094457 in words is "one billion, fifty-seven million, ninety-four thousand, four hundred fifty-seven".