22288932 has 72 divisors (see below), whose sum is σ = 61029696. Its totient is φ = 7099488.

The previous prime is 22288927. The next prime is 22288939. The reversal of 22288932 is 23988222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22288939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21858 + ... + 22854.

Almost surely, 2^22288932 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 22288932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30514848).

22288932 is an abundant number, since it is smaller than the sum of its proper divisors (38740764).

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

22288932 is a wasteful number, since it uses less digits than its factorization.

22288932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1025 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22288932 is about 4721.1155461395. The cubic root of 22288932 is about 281.4252667562.

It can be divided in two parts, 22288 and 932, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22288932 in words is "twenty-two million, two hundred eighty-eight thousand, nine hundred thirty-two".