23213568 has 160 divisors (see below), whose sum is σ = 75423744. Its totient is φ = 6193152.

The previous prime is 23213539. The next prime is 23213569. The reversal of 23213568 is 86531232.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213569) 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, 182721 + ... + 182847.

Almost surely, 2^23213568 is an apocalyptic number.

23213568 is a gapful number since it is divisible by the number (28) 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 23213568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37711872).

23213568 is an abundant number, since it is smaller than the sum of its proper divisors (52210176).

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

23213568 is a wasteful number, since it uses less digits than its factorization.

23213568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 23213568 is about 4818.0460769901. The cubic root of 23213568 is about 285.2642178848.

The spelling of 23213568 in words is "twenty-three million, two hundred thirteen thousand, five hundred sixty-eight".