23220992 has 36 divisors (see below), whose sum is σ = 47142816. Its totient is φ = 11412480.

The previous prime is 23220991. The next prime is 23221019. The reversal of 23220992 is 29902232.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (23220991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14873 + ... + 16359.

Almost surely, 2^23220992 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 23220992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23571408).

23220992 is an abundant number, since it is smaller than the sum of its proper divisors (23921824).

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

23220992 is an equidigital number, since it uses as much as digits as its factorization.

23220992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 23220992 is about 4818.8164522007. The cubic root of 23220992 is about 285.2946250419.

The spelling of 23220992 in words is "twenty-three million, two hundred twenty thousand, nine hundred ninety-two".