22992992 has 48 divisors (see below), whose sum is σ = 50041152. Its totient is φ = 10312320.

The previous prime is 22992971. The next prime is 22992997. The reversal of 22992992 is 29929922.

It is a super-2 number, since 2×22992992² = 1057355362224128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22992997) 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, 28823 + ... + 29609.

It is an arithmetic number, because the mean of its divisors is an integer number (1042524).

Almost surely, 2^22992992 is an apocalyptic number.

22992992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22992992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25020576).

22992992 is an abundant number, since it is smaller than the sum of its proper divisors (27048160).

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

22992992 is a wasteful number, since it uses less digits than its factorization.

22992992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 883 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 22992992 is about 4795.1008331421. The cubic root of 22992992 is about 284.3578112543.

The spelling of 22992992 in words is "twenty-two million, nine hundred ninety-two thousand, nine hundred ninety-two".