23835840 has 112 divisors (see below), whose sum is σ = 86514432. Its totient is φ = 5446656.

The previous prime is 23835827. The next prime is 23835893. The reversal of 23835840 is 4853832.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4947 + ... + 8493.

Almost surely, 2^23835840 is an apocalyptic number.

23835840 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 23835840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43257216).

23835840 is an abundant number, since it is smaller than the sum of its proper divisors (62678592).

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

23835840 is a wasteful number, since it uses less digits than its factorization.

23835840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 23835840 is about 4882.1962271093. The cubic root of 23835840 is about 287.7907430553.

The spelling of 23835840 in words is "twenty-three million, eight hundred thirty-five thousand, eight hundred forty".