18545942 has 16 divisors (see below), whose sum is σ = 28691280. Its totient is φ = 8986752.

The previous prime is 18545941. The next prime is 18545953. The reversal of 18545942 is 24954581.

It is a junction number, because it is equal to n+sod(n) for n = 18545896 and 18545905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18545941) 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, 7538 + ... + 9690.

It is an arithmetic number, because the mean of its divisors is an integer number (1793205).

Almost surely, 2^18545942 is an apocalyptic number.

It is a pronic number, being equal to 4306×4307.

18545942 is a deficient number, since it is larger than the sum of its proper divisors (10145338).

18545942 is a wasteful number, since it uses less digits than its factorization.

18545942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287.

The product of its digits is 57600, while the sum is 38.

The square root of 18545942 is about 4306.4999709741. The cubic root of 18545942 is about 264.6973737725.

The spelling of 18545942 in words is "eighteen million, five hundred forty-five thousand, nine hundred forty-two".