23402998391 has 8 divisors (see below), whose sum is σ = 23445543744. Its totient is φ = 23360477920.

The previous prime is 23402998373. The next prime is 23402998447. The reversal of 23402998391 is 19389920432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23402998391 - 2⁶ = 23402998327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23402998301) 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, 3863321 + ... + 3869373.

It is an arithmetic number, because the mean of its divisors is an integer number (2930692968).

Almost surely, 2^23402998391 is an apocalyptic number.

23402998391 is a deficient number, since it is larger than the sum of its proper divisors (42545353).

23402998391 is an equidigital number, since it uses as much as digits as its factorization.

23402998391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 23402998391 in words is "twenty-three billion, four hundred two million, nine hundred ninety-eight thousand, three hundred ninety-one".