23456280 has 32 divisors (see below), whose sum is σ = 70369200. Its totient is φ = 6254976.

The previous prime is 23456267. The next prime is 23456291. The reversal of 23456280 is 8265432.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 97615 + ... + 97854.

Almost surely, 2^23456280 is an apocalyptic number.

23456280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23456280 is an abundant number, since it is smaller than the sum of its proper divisors (46912920).

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

23456280 is a wasteful number, since it uses less digits than its factorization.

23456280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195483 (or 195479 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 23456280 is about 4843.1683844360. The cubic root of 23456280 is about 286.2549766175.

The spelling of 23456280 in words is "twenty-three million, four hundred fifty-six thousand, two hundred eighty".