23457966 has 48 divisors (see below), whose sum is σ = 55373904. Its totient is φ = 6604416.

The previous prime is 23457947. The next prime is 23457971. The reversal of 23457966 is 66975432.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20916 + ... + 22008.

It is an arithmetic number, because the mean of its divisors is an integer number (1153623).

Almost surely, 2^23457966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23457966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27686952).

23457966 is an abundant number, since it is smaller than the sum of its proper divisors (31915938).

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

23457966 is a wasteful number, since it uses less digits than its factorization.

23457966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1178 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 23457966 is about 4843.3424409183. The cubic root of 23457966 is about 286.2618349702.

The spelling of 23457966 in words is "twenty-three million, four hundred fifty-seven thousand, nine hundred sixty-six".