23557230 has 80 divisors (see below), whose sum is σ = 64120320. Its totient is φ = 6205248.

The previous prime is 23557229. The next prime is 23557231. The reversal of 23557230 is 3275532.

It is an interprime number because it is at equal distance from previous prime (23557229) and next prime (23557231).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23557194 and 23557203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23557231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 102756 + ... + 102984.

It is an arithmetic number, because the mean of its divisors is an integer number (801504).

Almost surely, 2^23557230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23557230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32060160).

23557230 is an abundant number, since it is smaller than the sum of its proper divisors (40563090).

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

23557230 is a wasteful number, since it uses less digits than its factorization.

23557230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 23557230 is about 4853.5790917631. The cubic root of 23557230 is about 286.6650456612.

The spelling of 23557230 in words is "twenty-three million, five hundred fifty-seven thousand, two hundred thirty".