23427644 has 6 divisors (see below), whose sum is σ = 40998384. Its totient is φ = 11713820.

The previous prime is 23427641. The next prime is 23427707. The reversal of 23427644 is 44672432.

It is a self number, because there is not a number n which added to its sum of digits gives 23427644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23427641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928452 + ... + 2928459.

It is an arithmetic number, because the mean of its divisors is an integer number (6833064).

Almost surely, 2^23427644 is an apocalyptic number.

It is an amenable number.

23427644 is a deficient number, since it is larger than the sum of its proper divisors (17570740).

23427644 is a wasteful number, since it uses less digits than its factorization.

23427644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5856915 (or 5856913 counting only the distinct ones).

The product of its digits is 32256, while the sum is 32.

The square root of 23427644 is about 4840.2111524189. The cubic root of 23427644 is about 286.1384401568.

The spelling of 23427644 in words is "twenty-three million, four hundred twenty-seven thousand, six hundred forty-four".