23914920 has 128 divisors (see below), whose sum is σ = 80092800. Its totient is φ = 5677056.

The previous prime is 23914861. The next prime is 23914949. The reversal of 23914920 is 2941932.

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

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 31 ways as a sum of consecutive naturals, for example, 38452 + ... + 39068.

It is an arithmetic number, because the mean of its divisors is an integer number (625725).

Almost surely, 2^23914920 is an apocalyptic number.

23914920 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 23914920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40046400).

23914920 is an abundant number, since it is smaller than the sum of its proper divisors (56177880).

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

23914920 is a wasteful number, since it uses less digits than its factorization.

23914920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23914920 is about 4890.2883350576. The cubic root of 23914920 is about 288.1086588449.

The spelling of 23914920 in words is "twenty-three million, nine hundred fourteen thousand, nine hundred twenty".