422971872 has 48 divisors (see below), whose sum is σ = 1111456080. Its totient is φ = 140844032.

The previous prime is 422971859. The next prime is 422971907. The reversal of 422971872 is 278179224.

It is a tau number, because it is divible by the number of its divisors (48).

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, 130204 + ... + 133412.

It is an arithmetic number, because the mean of its divisors is an integer number (23155335).

Almost surely, 2^422971872 is an apocalyptic number.

It is an amenable number.

422971872 is an abundant number, since it is smaller than the sum of its proper divisors (688484208).

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

422971872 is a wasteful number, since it uses less digits than its factorization.

422971872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595 (or 4587 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 422971872 is about 20566.2799747548. The cubic root of 422971872 is about 750.6494357043.

The spelling of 422971872 in words is "four hundred twenty-two million, nine hundred seventy-one thousand, eight hundred seventy-two".