23742745 has 16 divisors (see below), whose sum is σ = 31675392. Its totient is φ = 16966080.

The previous prime is 23742737. The next prime is 23742773. The reversal of 23742745 is 54724732.

It is not a de Polignac number, because 23742745 - 2³ = 23742737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23742745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3877 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (1979712).

Almost surely, 2^23742745 is an apocalyptic number.

It is an amenable number.

23742745 is a deficient number, since it is larger than the sum of its proper divisors (7932647).

23742745 is a wasteful number, since it uses less digits than its factorization.

23742745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832.

The product of its digits is 47040, while the sum is 34.

The square root of 23742745 is about 4872.6527682567. The cubic root of 23742745 is about 287.4155820203.

The spelling of 23742745 in words is "twenty-three million, seven hundred forty-two thousand, seven hundred forty-five".