447490172 has 12 divisors (see below), whose sum is σ = 785025360. Its totient is φ = 223197216.

The previous prime is 447490163. The next prime is 447490181. The reversal of 447490172 is 271094744.

It is an interprime number because it is at equal distance from previous prime (447490163) and next prime (447490181).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135128 + ... + 138399.

It is an arithmetic number, because the mean of its divisors is an integer number (65418780).

Almost surely, 2^447490172 is an apocalyptic number.

It is an amenable number.

447490172 is a deficient number, since it is larger than the sum of its proper divisors (337535188).

447490172 is a wasteful number, since it uses less digits than its factorization.

447490172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273940 (or 273938 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 447490172 is about 21153.9635056885. The cubic root of 447490172 is about 764.8821052319.

The spelling of 447490172 in words is "four hundred forty-seven million, four hundred ninety thousand, one hundred seventy-two".