18369485 has 12 divisors (see below), whose sum is σ = 23266908. Its totient is φ = 13920768.

The previous prime is 18369437. The next prime is 18369497. The reversal of 18369485 is 58496381.

It can be written as a sum of positive squares in 2 ways, for example, as 9357481 + 9012004 = 3059^2 + 3002^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18369485 is a prime.

It is a Duffinian number.

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, 3284 + ... + 6893.

It is an arithmetic number, because the mean of its divisors is an integer number (1938909).

Almost surely, 2^18369485 is an apocalyptic number.

It is an amenable number.

18369485 is a deficient number, since it is larger than the sum of its proper divisors (4897423).

18369485 is a wasteful number, since it uses less digits than its factorization.

18369485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220 (or 10201 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 18369485 is about 4285.9637189318. The cubic root of 18369485 is about 263.8552016257.

The spelling of 18369485 in words is "eighteen million, three hundred sixty-nine thousand, four hundred eighty-five".