423009680 has 40 divisors (see below), whose sum is σ = 988629432. Its totient is φ = 168321024.

The previous prime is 423009679. The next prime is 423009709. The reversal of 423009680 is 86900324.

It can be written as a sum of positive squares in 4 ways, for example, as 36336784 + 386672896 = 6028^2 + 19664^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 1742 + ... + 29138.

Almost surely, 2^423009680 is an apocalyptic number.

423009680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423009680 is an abundant number, since it is smaller than the sum of its proper divisors (565619752).

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

423009680 is a wasteful number, since it uses less digits than its factorization.

423009680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27603 (or 27597 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 423009680 is about 20567.1991287098. The cubic root of 423009680 is about 750.6718010278.

The spelling of 423009680 in words is "four hundred twenty-three million, nine thousand, six hundred eighty".