23980642 has 24 divisors (see below), whose sum is σ = 43677504. Its totient is φ = 9671232.

The previous prime is 23980549. The next prime is 23980643. The reversal of 23980642 is 24608932.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 23980598 and 23980607.

It is not an unprimeable number, because it can be changed into a prime (23980643) 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, 1083 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (1819896).

Almost surely, 2^23980642 is an apocalyptic number.

23980642 is a deficient number, since it is larger than the sum of its proper divisors (19696862).

23980642 is a wasteful number, since it uses less digits than its factorization.

23980642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970 (or 5953 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 23980642 is about 4897.0033694087. The cubic root of 23980642 is about 288.3723402368.

The spelling of 23980642 in words is "twenty-three million, nine hundred eighty thousand, six hundred forty-two".