23940940 has 24 divisors (see below), whose sum is σ = 50494752. Its totient is φ = 9534720.

The previous prime is 23940937. The next prime is 23940949. The reversal of 23940940 is 4904932.

It is not an unprimeable number, because it can be changed into a prime (23940949) 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, 2337 + ... + 7303.

It is an arithmetic number, because the mean of its divisors is an integer number (2103948).

Almost surely, 2^23940940 is an apocalyptic number.

23940940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23940940 is an abundant number, since it is smaller than the sum of its proper divisors (26553812).

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

23940940 is a wasteful number, since it uses less digits than its factorization.

23940940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 23940940 is about 4892.9479866436. The cubic root of 23940940 is about 288.2131106561.

The spelling of 23940940 in words is "twenty-three million, nine hundred forty thousand, nine hundred forty".