23909032 has 32 divisors (see below), whose sum is σ = 52430400. Its totient is φ = 10007424.

The previous prime is 23908981. The next prime is 23909047. The reversal of 23909032 is 23090932.

It is a happy number.

It is a super-2 number, since 2×23909032² = 1143283622354048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 2557 + ... + 7372.

It is an arithmetic number, because the mean of its divisors is an integer number (1638450).

Almost surely, 2^23909032 is an apocalyptic number.

It is an amenable number.

23909032 is an abundant number, since it is smaller than the sum of its proper divisors (28521368).

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

23909032 is a wasteful number, since it uses less digits than its factorization.

23909032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9985 (or 9981 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 23909032 is about 4889.6862885056. The cubic root of 23909032 is about 288.0850121978.

Adding to 23909032 its reverse (23090932), we get a palindrome (46999964).

The spelling of 23909032 in words is "twenty-three million, nine hundred nine thousand, thirty-two".