23404980 has 24 divisors (see below), whose sum is σ = 65534112. Its totient is φ = 6241312.

The previous prime is 23404967. The next prime is 23404981. The reversal of 23404980 is 8940432.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194982 + ... + 195101.

It is an arithmetic number, because the mean of its divisors is an integer number (2730588).

Almost surely, 2^23404980 is an apocalyptic number.

23404980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23404980 is an abundant number, since it is smaller than the sum of its proper divisors (42129132).

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

23404980 is a wasteful number, since it uses less digits than its factorization.

23404980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390095 (or 390093 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 23404980 is about 4837.8693657436. The cubic root of 23404980 is about 286.0461398818.

The spelling of 23404980 in words is "twenty-three million, four hundred four thousand, nine hundred eighty".