423293872 has 20 divisors (see below), whose sum is σ = 822039400. Its totient is φ = 211154688.

The previous prime is 423293869. The next prime is 423293903. The reversal of 423293872 is 278392324.

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, 23622 + ... + 37477.

It is an arithmetic number, because the mean of its divisors is an integer number (41101970).

Almost surely, 2^423293872 is an apocalyptic number.

It is an amenable number.

423293872 is a deficient number, since it is larger than the sum of its proper divisors (398745528).

423293872 is a wasteful number, since it uses less digits than its factorization.

423293872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61540 (or 61534 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 423293872 is about 20574.1068335906. The cubic root of 423293872 is about 750.8398721723.

The spelling of 423293872 in words is "four hundred twenty-three million, two hundred ninety-three thousand, eight hundred seventy-two".