442518604 has 24 divisors (see below), whose sum is σ = 849881088. Its totient is φ = 199937040.

The previous prime is 442518599. The next prime is 442518613. The reversal of 442518604 is 406815244.

It is a super-2 number, since 2×442518604² = 391645429772217632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442518604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22764 + ... + 37459.

It is an arithmetic number, because the mean of its divisors is an integer number (35411712).

Almost surely, 2^442518604 is an apocalyptic number.

442518604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442518604 is a deficient number, since it is larger than the sum of its proper divisors (407362484).

442518604 is a wasteful number, since it uses less digits than its factorization.

442518604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60405 (or 60403 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 442518604 is about 21036.1261642918. The cubic root of 442518604 is about 762.0389639374.

The spelling of 442518604 in words is "four hundred forty-two million, five hundred eighteen thousand, six hundred four".