13888004 has 24 divisors (see below), whose sum is σ = 26277720. Its totient is φ = 6384384.

The previous prime is 13888003. The next prime is 13888009. The reversal of 13888004 is 40088831.

It can be written as a sum of positive squares in 4 ways, for example, as 1214404 + 12673600 = 1102^2 + 3560^2 .

It is not an unprimeable number, because it can be changed into a prime (13888001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20942 + ... + 21594.

It is an arithmetic number, because the mean of its divisors is an integer number (1094905).

Almost surely, 2^13888004 is an apocalyptic number.

It is an amenable number.

13888004 is a deficient number, since it is larger than the sum of its proper divisors (12389716).

13888004 is a wasteful number, since it uses less digits than its factorization.

13888004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 13888004 is about 3726.6612403061. The cubic root of 13888004 is about 240.3698233537.

The spelling of 13888004 in words is "thirteen million, eight hundred eighty-eight thousand, four".