18082775 has 12 divisors (see below), whose sum is σ = 23603400. Its totient is φ = 13704480.

The previous prime is 18082769. The next prime is 18082811. The reversal of 18082775 is 57728081.

It is not a de Polignac number, because 18082775 - 2⁶ = 18082711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18560 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (1966950).

Almost surely, 2^18082775 is an apocalyptic number.

18082775 is a deficient number, since it is larger than the sum of its proper divisors (5520625).

18082775 is a wasteful number, since it uses less digits than its factorization.

18082775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38098 (or 38093 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 18082775 is about 4252.3846251251. The cubic root of 18082775 is about 262.4752508791.

The spelling of 18082775 in words is "eighteen million, eighty-two thousand, seven hundred seventy-five".