13872392 has 8 divisors (see below), whose sum is σ = 26010750. Its totient is φ = 6936192.

The previous prime is 13872361. The next prime is 13872403. The reversal of 13872392 is 29327831.

It can be written as a sum of positive squares in only one way, i.e., 11519236 + 2353156 = 3394^2 + 1534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 867017 + ... + 867032.

Almost surely, 2^13872392 is an apocalyptic number.

It is an amenable number.

13872392 is a deficient number, since it is larger than the sum of its proper divisors (12138358).

13872392 is a wasteful number, since it uses less digits than its factorization.

13872392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734055 (or 1734051 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 13872392 is about 3724.5660149875. The cubic root of 13872392 is about 240.2797201556.

The spelling of 13872392 in words is "thirteen million, eight hundred seventy-two thousand, three hundred ninety-two".