442497684 has 24 divisors (see below), whose sum is σ = 1034123328. Its totient is φ = 147266560.

The previous prime is 442497677. The next prime is 442497697. The reversal of 442497684 is 486794244.

It is a congruent number.

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, 21072 + ... + 36455.

It is an arithmetic number, because the mean of its divisors is an integer number (43088472).

Almost surely, 2^442497684 is an apocalyptic number.

It is an amenable number.

442497684 is an abundant number, since it is smaller than the sum of its proper divisors (591625644).

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

442497684 is a wasteful number, since it uses less digits than its factorization.

442497684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58175 (or 58173 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 442497684 is about 21035.6289185753. The cubic root of 442497684 is about 762.0269553226.

The spelling of 442497684 in words is "four hundred forty-two million, four hundred ninety-seven thousand, six hundred eighty-four".