457664139 has 12 divisors (see below), whose sum is σ = 667886856. Its totient is φ = 301963392.

The previous prime is 457664117. The next prime is 457664159. The reversal of 457664139 is 931466754.

457664139 is a `hidden beast` number, since 4 + 576 + 6 + 41 + 39 = 666.

It is not a de Polignac number, because 457664139 - 2⁸ = 457663883 is a prime.

It is a super-2 number, since 2×457664139² = 418912928253222642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 457664094 and 457664103.

It is not an unprimeable number, because it can be changed into a prime (457664159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 261249 + ... + 262994.

It is an arithmetic number, because the mean of its divisors is an integer number (55657238).

Almost surely, 2^457664139 is an apocalyptic number.

457664139 is a deficient number, since it is larger than the sum of its proper divisors (210222717).

457664139 is a wasteful number, since it uses less digits than its factorization.

457664139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524346 (or 524343 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 457664139 is about 21393.0862429898. The cubic root of 457664139 is about 770.6354113041.

The spelling of 457664139 in words is "four hundred fifty-seven million, six hundred sixty-four thousand, one hundred thirty-nine".