18413396 has 12 divisors (see below), whose sum is σ = 32254740. Its totient is φ = 9197760.

The previous prime is 18413389. The next prime is 18413401. The reversal of 18413396 is 69331481.

It can be written as a sum of positive squares in 2 ways, for example, as 15100996 + 3312400 = 3886^2 + 1820^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5006 + ... + 7866.

It is an arithmetic number, because the mean of its divisors is an integer number (2687895).

Almost surely, 2^18413396 is an apocalyptic number.

It is an amenable number.

18413396 is a deficient number, since it is larger than the sum of its proper divisors (13841344).

18413396 is a wasteful number, since it uses less digits than its factorization.

18413396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474 (or 4472 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 18413396 is about 4291.0833131040. The cubic root of 18413396 is about 264.0652769406.

The spelling of 18413396 in words is "eighteen million, four hundred thirteen thousand, three hundred ninety-six".