23980536 has 80 divisors (see below), whose sum is σ = 70131600. Its totient is φ = 7641216.

The previous prime is 23980511. The next prime is 23980547. The reversal of 23980536 is 63508932.

It is a super-2 number, since 2×23980536² = 1150132213694592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23980536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14100 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (876645).

Almost surely, 2^23980536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23980536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35065800).

23980536 is an abundant number, since it is smaller than the sum of its proper divisors (46151064).

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

23980536 is a wasteful number, since it uses less digits than its factorization.

23980536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 23980536 is about 4896.9925464513. The cubic root of 23980536 is about 288.3719153453.

The spelling of 23980536 in words is "twenty-three million, nine hundred eighty thousand, five hundred thirty-six".