18375742 has 32 divisors (see below), whose sum is σ = 36391680. Its totient is φ = 6737280.

The previous prime is 18375739. The next prime is 18375743. The reversal of 18375742 is 24757381.

18375742 = 74² + 75² + ... + 381².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375743) by changing a digit.

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, 892 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (1137240).

Almost surely, 2^18375742 is an apocalyptic number.

18375742 is a deficient number, since it is larger than the sum of its proper divisors (18015938).

18375742 is a wasteful number, since it uses less digits than its factorization.

18375742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056.

The product of its digits is 47040, while the sum is 37.

The square root of 18375742 is about 4286.6935976344. The cubic root of 18375742 is about 263.8851562776.

The spelling of 18375742 in words is "eighteen million, three hundred seventy-five thousand, seven hundred forty-two".