18742959 has 12 divisors (see below), whose sum is σ = 28665936. Its totient is φ = 11760192.

The previous prime is 18742957. The next prime is 18743009. The reversal of 18742959 is 95924781.

It is not a de Polignac number, because 18742959 - 2¹ = 18742957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61099 + ... + 61404.

It is an arithmetic number, because the mean of its divisors is an integer number (2388828).

Almost surely, 2^18742959 is an apocalyptic number.

18742959 is a deficient number, since it is larger than the sum of its proper divisors (9922977).

18742959 is a wasteful number, since it uses less digits than its factorization.

18742959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122526 (or 122523 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 18742959 is about 4329.3139179320. The cubic root of 18742959 is about 265.6313840034.

It can be divided in two parts, 18742 and 959, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 18742959 in words is "eighteen million, seven hundred forty-two thousand, nine hundred fifty-nine".