23372240 has 40 divisors (see below), whose sum is σ = 54544128. Its totient is φ = 9313920.

The previous prime is 23372227. The next prime is 23372243. The reversal of 23372240 is 4227332.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23372243) 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, 36725 + ... + 37355.

Almost surely, 2^23372240 is an apocalyptic number.

23372240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23372240 is an abundant number, since it is smaller than the sum of its proper divisors (31171888).

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

23372240 is a wasteful number, since it uses less digits than its factorization.

23372240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23372240 is about 4834.4844606225. The cubic root of 23372240 is about 285.9126993231.

Adding to 23372240 its reverse (4227332), we get a palindrome (27599572).

The spelling of 23372240 in words is "twenty-three million, three hundred seventy-two thousand, two hundred forty".