23415280 has 40 divisors (see below), whose sum is σ = 62219232. Its totient is φ = 8027904.

The previous prime is 23415257. The next prime is 23415283. The reversal of 23415280 is 8251432.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23415283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20347 + ... + 21466.

Almost surely, 2^23415280 is an apocalyptic number.

23415280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23415280 is an abundant number, since it is smaller than the sum of its proper divisors (38803952).

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

23415280 is a wasteful number, since it uses less digits than its factorization.

23415280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41833 (or 41827 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23415280 is about 4838.9337668540. The cubic root of 23415280 is about 286.0880945306.

The spelling of 23415280 in words is "twenty-three million, four hundred fifteen thousand, two hundred eighty".