23401400 has 72 divisors (see below), whose sum is σ = 59865960. Its totient is φ = 8500800.

The previous prime is 23401379. The next prime is 23401451. The reversal of 23401400 is 410432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23717 + ... + 24683.

Almost surely, 2^23401400 is an apocalyptic number.

23401400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23401400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29932980).

23401400 is an abundant number, since it is smaller than the sum of its proper divisors (36464560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23401400 is a wasteful number, since it uses less digits than its factorization.

23401400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 23401400 is about 4837.4993540051. The cubic root of 23401400 is about 286.0315547038.

Adding to 23401400 its reverse (410432), we get a palindrome (23811832).

The spelling of 23401400 in words is "twenty-three million, four hundred one thousand, four hundred".