2057857534 has 8 divisors (see below), whose sum is σ = 3088918008. Its totient is φ = 1028218200.

The previous prime is 2057857513. The next prime is 2057857547. The reversal of 2057857534 is 4357587502.

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

It is a super-2 number, since 2×2057857534² = 8469555260481122312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351657 + ... + 357460.

It is an arithmetic number, because the mean of its divisors is an integer number (386114751).

Almost surely, 2^2057857534 is an apocalyptic number.

2057857534 is a deficient number, since it is larger than the sum of its proper divisors (1031060474).

2057857534 is a wasteful number, since it uses less digits than its factorization.

2057857534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710570.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The square root of 2057857534 is about 45363.6146487469. The cubic root of 2057857534 is about 1271.9550630691.

The spelling of 2057857534 in words is "two billion, fifty-seven million, eight hundred fifty-seven thousand, five hundred thirty-four".