442474660 has 48 divisors (see below), whose sum is σ = 989956800. Its totient is φ = 165642624.

The previous prime is 442474631. The next prime is 442474699. The reversal of 442474660 is 66474244.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24526 + ... + 38554.

It is an arithmetic number, because the mean of its divisors is an integer number (20624100).

Almost surely, 2^442474660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442474660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494978400).

442474660 is an abundant number, since it is smaller than the sum of its proper divisors (547482140).

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

442474660 is a wasteful number, since it uses less digits than its factorization.

442474660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140 (or 14138 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 442474660 is about 21035.0816494731. The cubic root of 442474660 is about 762.0137385205.

The spelling of 442474660 in words is "four hundred forty-two million, four hundred seventy-four thousand, six hundred sixty".