423907372 has 24 divisors (see below), whose sum is σ = 870730784. Its totient is φ = 176764032.

The previous prime is 423907343. The next prime is 423907391. The reversal of 423907372 is 273709324.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 203553 + ... + 205624.

Almost surely, 2^423907372 is an apocalyptic number.

It is an amenable number.

423907372 is an abundant number, since it is smaller than the sum of its proper divisors (446823412).

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

423907372 is a wasteful number, since it uses less digits than its factorization.

423907372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409225 (or 409223 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 423907372 is about 20589.0109524474. The cubic root of 423907372 is about 751.2024397472.

The spelling of 423907372 in words is "four hundred twenty-three million, nine hundred seven thousand, three hundred seventy-two".