13429928 has 16 divisors (see below), whose sum is σ = 25245780. Its totient is φ = 6697728.

The previous prime is 13429909. The next prime is 13429931. The reversal of 13429928 is 82992431.

13429928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11847364 + 1582564 = 3442^2 + 1258^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13429891 and 13429900.

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, 1526 + ... + 5402.

Almost surely, 2^13429928 is an apocalyptic number.

It is an amenable number.

13429928 is a deficient number, since it is larger than the sum of its proper divisors (11815852).

13429928 is a wasteful number, since it uses less digits than its factorization.

13429928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316 (or 4312 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 13429928 is about 3664.6866168883. The cubic root of 13429928 is about 237.6974712226.

The spelling of 13429928 in words is "thirteen million, four hundred twenty-nine thousand, nine hundred twenty-eight".