23122470 has 64 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 5228928.

The previous prime is 23122427. The next prime is 23122493. The reversal of 23122470 is 7422132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21096 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (1001520).

Almost surely, 2^23122470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23122470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32048640).

23122470 is an abundant number, since it is smaller than the sum of its proper divisors (40974810).

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

23122470 is a wasteful number, since it uses less digits than its factorization.

23122470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23122470 is about 4808.5829513486. The cubic root of 23122470 is about 284.8905704846.

The spelling of 23122470 in words is "twenty-three million, one hundred twenty-two thousand, four hundred seventy".