457042631 has 4 divisors (see below), whose sum is σ = 457420632. Its totient is φ = 456664632.

The previous prime is 457042609. The next prime is 457042633. The reversal of 457042631 is 136240754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457042631 - 2²⁶ = 389933767 is a prime.

It is a super-2 number, since 2×457042631² = 417775933102804322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457042633) by changing a digit.

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, 187181 + ... + 189606.

It is an arithmetic number, because the mean of its divisors is an integer number (114355158).

Almost surely, 2^457042631 is an apocalyptic number.

457042631 is a deficient number, since it is larger than the sum of its proper divisors (378001).

457042631 is a wasteful number, since it uses less digits than its factorization.

457042631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378000.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 457042631 is about 21378.5554002136. Note that the first 3 decimals coincide. The cubic root of 457042631 is about 770.2864122576.

The spelling of 457042631 in words is "four hundred fifty-seven million, forty-two thousand, six hundred thirty-one".