23659140 has 24 divisors (see below), whose sum is σ = 66245760. Its totient is φ = 6309088.

The previous prime is 23659127. The next prime is 23659151. The reversal of 23659140 is 4195632.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23659098 and 23659107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197100 + ... + 197219.

It is an arithmetic number, because the mean of its divisors is an integer number (2760240).

Almost surely, 2^23659140 is an apocalyptic number.

23659140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23659140 is an abundant number, since it is smaller than the sum of its proper divisors (42586620).

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

23659140 is a wasteful number, since it uses less digits than its factorization.

23659140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394331 (or 394329 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 23659140 is about 4864.0662002074. The cubic root of 23659140 is about 287.0778277601.

The spelling of 23659140 in words is "twenty-three million, six hundred fifty-nine thousand, one hundred forty".