23902641 has 64 divisors (see below), whose sum is σ = 43200000. Its totient is φ = 13039488.

The previous prime is 23902639. The next prime is 23902651. The reversal of 23902641 is 14620932.

It is not a de Polignac number, because 23902641 - 2¹ = 23902639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23902651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 268525 + ... + 268613.

It is an arithmetic number, because the mean of its divisors is an integer number (675000).

Almost surely, 2^23902641 is an apocalyptic number.

23902641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23902641 is a deficient number, since it is larger than the sum of its proper divisors (19297359).

23902641 is an equidigital number, since it uses as much as digits as its factorization.

23902641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23902641 is about 4889.0327264194. The cubic root of 23902641 is about 288.0593410708.

The spelling of 23902641 in words is "twenty-three million, nine hundred two thousand, six hundred forty-one".