442631464 has 32 divisors (see below), whose sum is σ = 906222240. Its totient is φ = 201009600.

The previous prime is 442631381. The next prime is 442631471. The reversal of 442631464 is 464136244.

It is a super-2 number, since 2×442631464² = 391845225845566592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147499 + ... + 150469.

It is an arithmetic number, because the mean of its divisors is an integer number (28319445).

Almost surely, 2^442631464 is an apocalyptic number.

442631464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442631464 is an abundant number, since it is smaller than the sum of its proper divisors (463590776).

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

442631464 is a wasteful number, since it uses less digits than its factorization.

442631464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4677 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The square root of 442631464 is about 21038.8085213968. The cubic root of 442631464 is about 762.1037419349.

The spelling of 442631464 in words is "four hundred forty-two million, six hundred thirty-one thousand, four hundred sixty-four".