457135688 has 8 divisors (see below), whose sum is σ = 857129430. Its totient is φ = 228567840.

The previous prime is 457135681. The next prime is 457135753. The reversal of 457135688 is 886531754.

It can be written as a sum of positive squares in only one way, i.e., 302829604 + 154306084 = 17402^2 + 12422^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (457135681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28570973 + ... + 28570988.

Almost surely, 2^457135688 is an apocalyptic number.

It is an amenable number.

457135688 is a deficient number, since it is larger than the sum of its proper divisors (399993742).

457135688 is a wasteful number, since it uses less digits than its factorization.

457135688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57141967 (or 57141963 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 457135688 is about 21380.7316993596. The cubic root of 457135688 is about 770.3386872341.

The spelling of 457135688 in words is "four hundred fifty-seven million, one hundred thirty-five thousand, six hundred eighty-eight".