13994428 has 12 divisors (see below), whose sum is σ = 27988912. Its totient is φ = 5997600.

The previous prime is 13994411. The next prime is 13994447. The reversal of 13994428 is 82449931.

13994428 is an admirable number.

It is a hoax number, since the sum of its digits (40) 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, 249873 + ... + 249928.

Almost surely, 2^13994428 is an apocalyptic number.

It is an amenable number.

13994428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13994428 is a wasteful number, since it uses less digits than its factorization.

13994428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499812 (or 499810 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 13994428 is about 3740.9127228525. The cubic root of 13994428 is about 240.9822476206.

The spelling of 13994428 in words is "thirteen million, nine hundred ninety-four thousand, four hundred twenty-eight".