13791428 has 12 divisors (see below), whose sum is σ = 27582912. Its totient is φ = 5910600.

The previous prime is 13791409. The next prime is 13791451. The reversal of 13791428 is 82419731.

13791428 is an admirable number.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246248 + ... + 246303.

It is an arithmetic number, because the mean of its divisors is an integer number (2298576).

Almost surely, 2^13791428 is an apocalyptic number.

It is an amenable number.

13791428 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.

13791428 is a wasteful number, since it uses less digits than its factorization.

13791428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492562 (or 492560 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 13791428 is about 3713.6811925635. The cubic root of 13791428 is about 239.8113563918.

The spelling of 13791428 in words is "thirteen million, seven hundred ninety-one thousand, four hundred twenty-eight".