442559940 has 24 divisors (see below), whose sum is σ = 1239168000. Its totient is φ = 118015968.

The previous prime is 442559899. The next prime is 442559959. The reversal of 442559940 is 49955244.

It is a junction number, because it is equal to n+sod(n) for n = 442559892 and 442559901.

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, 3687940 + ... + 3688059.

It is an arithmetic number, because the mean of its divisors is an integer number (51632000).

Almost surely, 2^442559940 is an apocalyptic number.

It is an amenable number.

442559940 is an abundant number, since it is smaller than the sum of its proper divisors (796608060).

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

442559940 is a wasteful number, since it uses less digits than its factorization.

442559940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376011 (or 7376009 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 442559940 is about 21037.1086416361. The cubic root of 442559940 is about 762.0626907454.

The spelling of 442559940 in words is "four hundred forty-two million, five hundred fifty-nine thousand, nine hundred forty".