23989620 has 48 divisors (see below), whose sum is σ = 67390848. Its totient is φ = 6376320.

The previous prime is 23989619. The next prime is 23989631. The reversal of 23989620 is 2698932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28810 + ... + 29630.

It is an arithmetic number, because the mean of its divisors is an integer number (1403976).

Almost surely, 2^23989620 is an apocalyptic number.

23989620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23989620 is an abundant number, since it is smaller than the sum of its proper divisors (43401228).

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

23989620 is a wasteful number, since it uses less digits than its factorization.

23989620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 23989620 is about 4897.9199666797. The cubic root of 23989620 is about 288.4083232023.

The spelling of 23989620 in words is "twenty-three million, nine hundred eighty-nine thousand, six hundred twenty".