23688620 has 36 divisors (see below), whose sum is σ = 52026240. Its totient is φ = 9059424.

The previous prime is 23688617. The next prime is 23688629. The reversal of 23688620 is 2688632.

It is a super-2 number, since 2×23688620² = 1122301435008800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23688629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9461 + ... + 11699.

Almost surely, 2^23688620 is an apocalyptic number.

23688620 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 23688620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26013120).

23688620 is an abundant number, since it is smaller than the sum of its proper divisors (28337620).

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

23688620 is a wasteful number, since it uses less digits than its factorization.

23688620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 23688620 is about 4867.0956431942. The cubic root of 23688620 is about 287.1970141397.

The spelling of 23688620 in words is "twenty-three million, six hundred eighty-eight thousand, six hundred twenty".