23974040 has 32 divisors (see below), whose sum is σ = 54287280. Its totient is φ = 9528192.

The previous prime is 23974009. The next prime is 23974043. The reversal of 23974040 is 4047932.

It is a junction number, because it is equal to n+sod(n) for n = 23973994 and 23974012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23974043) 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, 4682 + ... + 8358.

Almost surely, 2^23974040 is an apocalyptic number.

23974040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23974040 is an abundant number, since it is smaller than the sum of its proper divisors (30313240).

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

23974040 is a wasteful number, since it uses less digits than its factorization.

23974040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 23974040 is about 4896.3292372960. The cubic root of 23974040 is about 288.3458743213.

The spelling of 23974040 in words is "twenty-three million, nine hundred seventy-four thousand, forty".