22545732 has 24 divisors (see below), whose sum is σ = 57389472. Its totient is φ = 6832000.

The previous prime is 22545709. The next prime is 22545739. The reversal of 22545732 is 23754522.

It is a self number, because there is not a number n which added to its sum of digits gives 22545732.

It is not an unprimeable number, because it can be changed into a prime (22545739) 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, 85269 + ... + 85532.

It is an arithmetic number, because the mean of its divisors is an integer number (2391228).

Almost surely, 2^22545732 is an apocalyptic number.

22545732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22545732 is an abundant number, since it is smaller than the sum of its proper divisors (34843740).

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

22545732 is a wasteful number, since it uses less digits than its factorization.

22545732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170819 (or 170817 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 22545732 is about 4748.2346193085. The cubic root of 22545732 is about 282.5019479334.

The spelling of 22545732 in words is "twenty-two million, five hundred forty-five thousand, seven hundred thirty-two".