18850538 has 32 divisors (see below), whose sum is σ = 33547008. Its totient is φ = 7776000.

The previous prime is 18850523. The next prime is 18850541. The reversal of 18850538 is 83505881.

It is a Curzon number.

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, 78098 + ... + 78338.

It is an arithmetic number, because the mean of its divisors is an integer number (1048344).

Almost surely, 2^18850538 is an apocalyptic number.

18850538 is a deficient number, since it is larger than the sum of its proper divisors (14696470).

18850538 is a wasteful number, since it uses less digits than its factorization.

18850538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 18850538 is about 4341.7206266640. The cubic root of 18850538 is about 266.1386297567.

The spelling of 18850538 in words is "eighteen million, eight hundred fifty thousand, five hundred thirty-eight".