442571404 has 24 divisors (see below), whose sum is σ = 894611088. Its totient is φ = 189335040.

The previous prime is 442571383. The next prime is 442571417. The reversal of 442571404 is 404175244.

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, 295089 + ... + 296584.

It is an arithmetic number, because the mean of its divisors is an integer number (37275462).

Almost surely, 2^442571404 is an apocalyptic number.

442571404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442571404 is an abundant number, since it is smaller than the sum of its proper divisors (452039684).

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

442571404 is a wasteful number, since it uses less digits than its factorization.

442571404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591705 (or 591703 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 442571404 is about 21037.3811107752. The cubic root of 442571404 is about 762.0692708042.

The spelling of 442571404 in words is "four hundred forty-two million, five hundred seventy-one thousand, four hundred four".