18080461 has 24 divisors (see below), whose sum is σ = 22391424. Its totient is φ = 14525280.

The previous prime is 18080459. The next prime is 18080479. The reversal of 18080461 is 16408081.

It is not a de Polignac number, because 18080461 - 2¹ = 18080459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68616 + ... + 68878.

It is an arithmetic number, because the mean of its divisors is an integer number (932976).

Almost surely, 2^18080461 is an apocalyptic number.

It is an amenable number.

18080461 is a deficient number, since it is larger than the sum of its proper divisors (4310963).

18080461 is a wasteful number, since it uses less digits than its factorization.

18080461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18080461 is about 4252.1125337884. The cubic root of 18080461 is about 262.4640543372.

The spelling of 18080461 in words is "eighteen million, eighty thousand, four hundred sixty-one".