13851428 has 12 divisors (see below), whose sum is σ = 25294080. Its totient is φ = 6624552.

The previous prime is 13851407. The next prime is 13851433. The reversal of 13851428 is 82415831.

13851428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13851394 and 13851403.

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, 75188 + ... + 75371.

It is an arithmetic number, because the mean of its divisors is an integer number (2107840).

Almost surely, 2^13851428 is an apocalyptic number.

It is an amenable number.

13851428 is a deficient number, since it is larger than the sum of its proper divisors (11442652).

13851428 is a wasteful number, since it uses less digits than its factorization.

13851428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150586 (or 150584 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 13851428 is about 3721.7506633304. The cubic root of 13851428 is about 240.1586219915.

The spelling of 13851428 in words is "thirteen million, eight hundred fifty-one thousand, four hundred twenty-eight".