442980372 has 12 divisors (see below), whose sum is σ = 1033620896. Its totient is φ = 147660120.

The previous prime is 442980331. The next prime is 442980401. The reversal of 442980372 is 273089244.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 442980372.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18457504 + ... + 18457527.

Almost surely, 2^442980372 is an apocalyptic number.

It is an amenable number.

442980372 is an abundant number, since it is smaller than the sum of its proper divisors (590640524).

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

442980372 is a wasteful number, since it uses less digits than its factorization.

442980372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36915038 (or 36915036 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 442980372 is about 21047.0988974728. The cubic root of 442980372 is about 762.3039342525.

The spelling of 442980372 in words is "four hundred forty-two million, nine hundred eighty thousand, three hundred seventy-two".