442298172 has 24 divisors (see below), whose sum is σ = 1056030976. Its totient is φ = 144003888.

The previous prime is 442298149. The next prime is 442298189. The reversal of 442298172 is 271892244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442298172.

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, 428068 + ... + 429099.

Almost surely, 2^442298172 is an apocalyptic number.

It is an amenable number.

442298172 is an abundant number, since it is smaller than the sum of its proper divisors (613732804).

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

442298172 is a wasteful number, since it uses less digits than its factorization.

442298172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857217 (or 857215 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 442298172 is about 21030.8861439550. The cubic root of 442298172 is about 761.9124113128.

The spelling of 442298172 in words is "four hundred forty-two million, two hundred ninety-eight thousand, one hundred seventy-two".