18609042 has 32 divisors (see below), whose sum is σ = 38283840. Its totient is φ = 6027840.

The previous prime is 18609023. The next prime is 18609061. The reversal of 18609042 is 24090681.

It is an interprime number because it is at equal distance from previous prime (18609023) and next prime (18609061).

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, 43992 + ... + 44412.

It is an arithmetic number, because the mean of its divisors is an integer number (1196370).

Almost surely, 2^18609042 is an apocalyptic number.

18609042 is an abundant number, since it is smaller than the sum of its proper divisors (19674798).

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

18609042 is a wasteful number, since it uses less digits than its factorization.

18609042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 18609042 is about 4313.8198849743. The cubic root of 18609042 is about 264.9972326755.

The spelling of 18609042 in words is "eighteen million, six hundred nine thousand, forty-two".