23397132 has 72 divisors (see below), whose sum is σ = 62983872. Its totient is φ = 6703200.

The previous prime is 23397131. The next prime is 23397139. The reversal of 23397132 is 23179332.

It is a self number, because there is not a number n which added to its sum of digits gives 23397132.

It is not an unprimeable number, because it can be changed into a prime (23397131) 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, 47407 + ... + 47897.

It is an arithmetic number, because the mean of its divisors is an integer number (874776).

Almost surely, 2^23397132 is an apocalyptic number.

23397132 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 23397132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31491936).

23397132 is an abundant number, since it is smaller than the sum of its proper divisors (39586740).

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

23397132 is a wasteful number, since it uses less digits than its factorization.

23397132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 526 counting only the distinct ones).

The product of its digits is 6804, while the sum is 30.

The square root of 23397132 is about 4837.0581968796. The cubic root of 23397132 is about 286.0141646203.

The spelling of 23397132 in words is "twenty-three million, three hundred ninety-seven thousand, one hundred thirty-two".