23397880 has 64 divisors (see below), whose sum is σ = 58877280. Its totient is φ = 8294400.

The previous prime is 23397859. The next prime is 23397883. The reversal of 23397880 is 8879332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23397883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17392 + ... + 18688.

Almost surely, 2^23397880 is an apocalyptic number.

23397880 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 23397880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29438640).

23397880 is an abundant number, since it is smaller than the sum of its proper divisors (35479400).

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

23397880 is a wasteful number, since it uses less digits than its factorization.

23397880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 23397880 is about 4837.1355159846. The cubic root of 23397880 is about 286.0172125197.

The spelling of 23397880 in words is "twenty-three million, three hundred ninety-seven thousand, eight hundred eighty".