23881641 has 32 divisors (see below), whose sum is σ = 38016000. Its totient is φ = 13051584.

The previous prime is 23881609. The next prime is 23881667. The reversal of 23881641 is 14618832.

It is not a de Polignac number, because 23881641 - 2⁵ = 23881609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23881601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47610 + ... + 48108.

It is an arithmetic number, because the mean of its divisors is an integer number (1188000).

Almost surely, 2^23881641 is an apocalyptic number.

23881641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23881641 is a deficient number, since it is larger than the sum of its proper divisors (14134359).

23881641 is a wasteful number, since it uses less digits than its factorization.

23881641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 9216, while the sum is 33.

The square root of 23881641 is about 4886.8845904114. The cubic root of 23881641 is about 287.9749568309.

The spelling of 23881641 in words is "twenty-three million, eight hundred eighty-one thousand, six hundred forty-one".