22292472 has 96 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 6730560.

The previous prime is 22292467. The next prime is 22292483. The reversal of 22292472 is 27429222.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268543 + ... + 268625.

It is an arithmetic number, because the mean of its divisors is an integer number (640080).

Almost surely, 2^22292472 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 22292472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30723840).

22292472 is an abundant number, since it is smaller than the sum of its proper divisors (39155208).

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

22292472 is a wasteful number, since it uses less digits than its factorization.

22292472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 138 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 22292472 is about 4721.4904426463. The cubic root of 22292472 is about 281.4401649234.

The spelling of 22292472 in words is "twenty-two million, two hundred ninety-two thousand, four hundred seventy-two".