442031808 has 56 divisors (see below), whose sum is σ = 1231107520. Its totient is φ = 139587840.

The previous prime is 442031797. The next prime is 442031809. The reversal of 442031808 is 808130244.

It is not an unprimeable number, because it can be changed into a prime (442031809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56938 + ... + 64233.

Almost surely, 2^442031808 is an apocalyptic number.

442031808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

442031808 is an abundant number, since it is smaller than the sum of its proper divisors (789075712).

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

442031808 is a wasteful number, since it uses less digits than its factorization.

442031808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121205 (or 121195 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 442031808 is about 21024.5525041557. The cubic root of 442031808 is about 761.7594324674.

The spelling of 442031808 in words is "four hundred forty-two million, thirty-one thousand, eight hundred eight".