23401399 has 8 divisors (see below), whose sum is σ = 26841888. Its totient is φ = 19985280.

The previous prime is 23401379. The next prime is 23401451. The reversal of 23401399 is 99310432.

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

It is not a de Polignac number, because 23401399 - 2⁷ = 23401271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 23401399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401349) 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, 3982 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (3355236).

Almost surely, 2^23401399 is an apocalyptic number.

23401399 is a deficient number, since it is larger than the sum of its proper divisors (3440489).

23401399 is a wasteful number, since it uses less digits than its factorization.

23401399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23401399 is about 4837.4992506459. The cubic root of 23401399 is about 286.0315506295.

The spelling of 23401399 in words is "twenty-three million, four hundred one thousand, three hundred ninety-nine".