23919401 has 8 divisors (see below), whose sum is σ = 26311008. Its totient is φ = 21743700.

The previous prime is 23919397. The next prime is 23919419. The reversal of 23919401 is 10491932.

It is a happy number.

It is not a de Polignac number, because 23919401 - 2² = 23919397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23919431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7655 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (3288876).

Almost surely, 2^23919401 is an apocalyptic number.

It is an amenable number.

23919401 is a deficient number, since it is larger than the sum of its proper divisors (2391607).

23919401 is an equidigital number, since it uses as much as digits as its factorization.

23919401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18004 (or 17982 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 23919401 is about 4890.7464665427. The cubic root of 23919401 is about 288.1266522743.

The spelling of 23919401 in words is "twenty-three million, nine hundred nineteen thousand, four hundred one".