23742645 has 16 divisors (see below), whose sum is σ = 38048832. Its totient is φ = 12642560.

The previous prime is 23742629. The next prime is 23742679. The reversal of 23742645 is 54624732.

It is not a de Polignac number, because 23742645 - 2⁴ = 23742629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16765 + ... + 18125.

It is an arithmetic number, because the mean of its divisors is an integer number (2378052).

Almost surely, 2^23742645 is an apocalyptic number.

It is an amenable number.

23742645 is a deficient number, since it is larger than the sum of its proper divisors (14306187).

23742645 is a wasteful number, since it uses less digits than its factorization.

23742645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its digits is 40320, while the sum is 33.

The square root of 23742645 is about 4872.6425068950. The cubic root of 23742645 is about 287.4151785061.

The spelling of 23742645 in words is "twenty-three million, seven hundred forty-two thousand, six hundred forty-five".