23776240 has 40 divisors (see below), whose sum is σ = 55487520. Its totient is φ = 9474816.

The previous prime is 23776199. The next prime is 23776243. The reversal of 23776240 is 4267732.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23776243) 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, 34782 + ... + 35458.

It is an arithmetic number, because the mean of its divisors is an integer number (1387188).

Almost surely, 2^23776240 is an apocalyptic number.

23776240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23776240 is an abundant number, since it is smaller than the sum of its proper divisors (31711280).

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

23776240 is a wasteful number, since it uses less digits than its factorization.

23776240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 23776240 is about 4876.0885964059. The cubic root of 23776240 is about 287.5506753773.

The spelling of 23776240 in words is "twenty-three million, seven hundred seventy-six thousand, two hundred forty".