23620280 has 32 divisors (see below), whose sum is σ = 53900640. Its totient is φ = 9313920.

The previous prime is 23620279. The next prime is 23620283. The reversal of 23620280 is 8202632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23620283) 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, 1319 + ... + 6998.

It is an arithmetic number, because the mean of its divisors is an integer number (1684395).

Almost surely, 2^23620280 is an apocalyptic number.

23620280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23620280 is an abundant number, since it is smaller than the sum of its proper divisors (30280360).

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

23620280 is a wasteful number, since it uses less digits than its factorization.

23620280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8399 (or 8395 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 23620280 is about 4860.0699583442. The cubic root of 23620280 is about 286.9205670740.

The spelling of 23620280 in words is "twenty-three million, six hundred twenty thousand, two hundred eighty".