423691472 has 20 divisors (see below), whose sum is σ = 823551456. Its totient is φ = 211162080.

The previous prime is 423691447. The next prime is 423691481. The reversal of 423691472 is 274196324.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 37598 + ... + 47549.

Almost surely, 2^423691472 is an apocalyptic number.

It is an amenable number.

423691472 is a deficient number, since it is larger than the sum of its proper divisors (399859984).

423691472 is a wasteful number, since it uses less digits than its factorization.

423691472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85466 (or 85460 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 423691472 is about 20583.7671965071. The cubic root of 423691472 is about 751.0748866076.

The spelling of 423691472 in words is "four hundred twenty-three million, six hundred ninety-one thousand, four hundred seventy-two".