423947372 has 12 divisors (see below), whose sum is σ = 742061880. Its totient is φ = 211929696.

The previous prime is 423947357. The next prime is 423947383. The reversal of 423947372 is 273749324.

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, 21083 + ... + 35949.

It is an arithmetic number, because the mean of its divisors is an integer number (61838490).

Almost surely, 2^423947372 is an apocalyptic number.

It is an amenable number.

423947372 is a deficient number, since it is larger than the sum of its proper divisors (318114508).

423947372 is a wasteful number, since it uses less digits than its factorization.

423947372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22000 (or 21998 counting only the distinct ones).

The product of its digits is 254016, while the sum is 41.

The square root of 423947372 is about 20589.9823215077. The cubic root of 423947372 is about 751.2260668841.

The spelling of 423947372 in words is "four hundred twenty-three million, nine hundred forty-seven thousand, three hundred seventy-two".