23801440 has 48 divisors (see below), whose sum is σ = 60561648. Its totient is φ = 8787456.

The previous prime is 23801417. The next prime is 23801447. The reversal of 23801440 is 4410832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23801447) 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, 3642 + ... + 7801.

It is an arithmetic number, because the mean of its divisors is an integer number (1261701).

Almost surely, 2^23801440 is an apocalyptic number.

23801440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23801440 is an abundant number, since it is smaller than the sum of its proper divisors (36760208).

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

23801440 is a wasteful number, since it uses less digits than its factorization.

23801440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11471 (or 11463 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 23801440 is about 4878.6719504390. The cubic root of 23801440 is about 287.6522294002.

The spelling of 23801440 in words is "twenty-three million, eight hundred one thousand, four hundred forty".