18085461 has 16 divisors (see below), whose sum is σ = 24620544. Its totient is φ = 11806704.

The previous prime is 18085439. The next prime is 18085477. The reversal of 18085461 is 16458081.

It is not a de Polignac number, because 18085461 - 2⁹ = 18084949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32790 + ... + 33336.

It is an arithmetic number, because the mean of its divisors is an integer number (1538784).

Almost surely, 2^18085461 is an apocalyptic number.

It is an amenable number.

18085461 is a deficient number, since it is larger than the sum of its proper divisors (6535083).

18085461 is a wasteful number, since it uses less digits than its factorization.

18085461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18085461 is about 4252.7004361935. The cubic root of 18085461 is about 262.4882461857.

The spelling of 18085461 in words is "eighteen million, eighty-five thousand, four hundred sixty-one".