23772180 has 24 divisors (see below), whose sum is σ = 66562272. Its totient is φ = 6339232.

The previous prime is 23772139. The next prime is 23772191. The reversal of 23772180 is 8127732.

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, 198042 + ... + 198161.

It is an arithmetic number, because the mean of its divisors is an integer number (2773428).

Almost surely, 2^23772180 is an apocalyptic number.

23772180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23772180 is an abundant number, since it is smaller than the sum of its proper divisors (42790092).

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

23772180 is a wasteful number, since it uses less digits than its factorization.

23772180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396215 (or 396213 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 23772180 is about 4875.6722613400. The cubic root of 23772180 is about 287.5343071851.

The spelling of 23772180 in words is "twenty-three million, seven hundred seventy-two thousand, one hundred eighty".