23372140 has 96 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 7814400.

The previous prime is 23372137. The next prime is 23372143. The reversal of 23372140 is 4127332.

It is an interprime number because it is at equal distance from previous prime (23372137) and next prime (23372143).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23372143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156786 + ... + 156934.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^23372140 is an apocalyptic number.

23372140 is a gapful number since it is divisible by the number (20) 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 23372140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030400).

23372140 is an abundant number, since it is smaller than the sum of its proper divisors (34688660).

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

23372140 is a wasteful number, since it uses less digits than its factorization.

23372140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 23372140 is about 4834.4741182470. The cubic root of 23372140 is about 285.9122915557.

Adding to 23372140 its reverse (4127332), we get a palindrome (27499472).

The spelling of 23372140 in words is "twenty-three million, three hundred seventy-two thousand, one hundred forty".