23120772 has 48 divisors (see below), whose sum is σ = 56582400. Its totient is φ = 7346976.

The previous prime is 23120749. The next prime is 23120789. The reversal of 23120772 is 27702132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292629 + ... + 292707.

It is an arithmetic number, because the mean of its divisors is an integer number (1178800).

Almost surely, 2^23120772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23120772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28291200).

23120772 is an abundant number, since it is smaller than the sum of its proper divisors (33461628).

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

23120772 is an equidigital number, since it uses as much as digits as its factorization.

23120772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 23120772 is about 4808.4063888153. The cubic root of 23120772 is about 284.8835966618.

The spelling of 23120772 in words is "twenty-three million, one hundred twenty thousand, seven hundred seventy-two".