457642530 has 24 divisors (see below), whose sum is σ = 1189870812. Its totient is φ = 122037984.

The previous prime is 457642519. The next prime is 457642543. The reversal of 457642530 is 35246754.

457642530 is a `hidden beast` number, since 4 + 5 + 7 + 642 + 5 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 433347489 + 24295041 = 20817^2 + 4929^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2542369 + ... + 2542548.

Almost surely, 2^457642530 is an apocalyptic number.

457642530 is an abundant number, since it is smaller than the sum of its proper divisors (732228282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

457642530 is a wasteful number, since it uses less digits than its factorization.

457642530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084930 (or 5084927 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 457642530 is about 21392.5811906838. The cubic root of 457642530 is about 770.6232823787.

The spelling of 457642530 in words is "four hundred fifty-seven million, six hundred forty-two thousand, five hundred thirty".