18757542 has 16 divisors (see below), whose sum is σ = 38725632. Its totient is φ = 6050760.

The previous prime is 18757517. The next prime is 18757547. The reversal of 18757542 is 24575781.

It is a self number, because there is not a number n which added to its sum of digits gives 18757542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18757547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50238 + ... + 50609.

It is an arithmetic number, because the mean of its divisors is an integer number (2420352).

Almost surely, 2^18757542 is an apocalyptic number.

18757542 is an abundant number, since it is smaller than the sum of its proper divisors (19968090).

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

18757542 is a wasteful number, since it uses less digits than its factorization.

18757542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100883.

The product of its digits is 78400, while the sum is 39.

The square root of 18757542 is about 4330.9978065106. The cubic root of 18757542 is about 265.7002578360.

The spelling of 18757542 in words is "eighteen million, seven hundred fifty-seven thousand, five hundred forty-two".