457642531 has 16 divisors (see below), whose sum is σ = 488851200. Its totient is φ = 427193568.

The previous prime is 457642519. The next prime is 457642543. The reversal of 457642531 is 135246754.

It is an interprime number because it is at equal distance from previous prime (457642519) and next prime (457642543).

It is not a de Polignac number, because 457642531 - 2⁷ = 457642403 is a prime.

It is a super-2 number, since 2×457642531² = 418873372360171922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457642511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465066 + ... + 466048.

It is an arithmetic number, because the mean of its divisors is an integer number (30553200).

Almost surely, 2^457642531 is an apocalyptic number.

457642531 is a deficient number, since it is larger than the sum of its proper divisors (31208669).

457642531 is a wasteful number, since it uses less digits than its factorization.

457642531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338.

The product of its digits is 100800, while the sum is 37.

The square root of 457642531 is about 21392.5812140564. The cubic root of 457642531 is about 770.6232829400.

The spelling of 457642531 in words is "four hundred fifty-seven million, six hundred forty-two thousand, five hundred thirty-one".