23661360 has 120 divisors (see below), whose sum is σ = 80954640. Its totient is φ = 6191616.

The previous prime is 23661359. The next prime is 23661431. The reversal of 23661360 is 6316632.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42202 + ... + 42758.

It is an arithmetic number, because the mean of its divisors is an integer number (674622).

Almost surely, 2^23661360 is an apocalyptic number.

23661360 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 23661360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40477320).

23661360 is an abundant number, since it is smaller than the sum of its proper divisors (57293280).

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

23661360 is a wasteful number, since it uses less digits than its factorization.

23661360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 23661360 is about 4864.2943989853. The cubic root of 23661360 is about 287.0868065712.

Adding to 23661360 its reverse (6316632), we get a palindrome (29977992).

The spelling of 23661360 in words is "twenty-three million, six hundred sixty-one thousand, three hundred sixty".