13618372 has 12 divisors (see below), whose sum is σ = 24223276. Its totient is φ = 6697440.

The previous prime is 13618357. The next prime is 13618373. The reversal of 13618372 is 27381631.

It can be written as a sum of positive squares in 2 ways, for example, as 3594816 + 10023556 = 1896^2 + 3166^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13618373) 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 3 ways as a sum of consecutive naturals, for example, 27663 + ... + 28150.

Almost surely, 2^13618372 is an apocalyptic number.

It is an amenable number.

13618372 is a deficient number, since it is larger than the sum of its proper divisors (10604904).

13618372 is a wasteful number, since it uses less digits than its factorization.

13618372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55878 (or 55876 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 13618372 is about 3690.3078462372. The cubic root of 13618372 is about 238.8040737147.

The spelling of 13618372 in words is "thirteen million, six hundred eighteen thousand, three hundred seventy-two".