13038428 has 12 divisors (see below), whose sum is σ = 24572520. Its totient is φ = 6017712.

The previous prime is 13038407. The next prime is 13038437. The reversal of 13038428 is 82483031.

It is a happy number.

It is a super-2 number, since 2×13038428² = 340001209422368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13038428.

It is a congruent number.

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, 125318 + ... + 125421.

It is an arithmetic number, because the mean of its divisors is an integer number (2047710).

Almost surely, 2^13038428 is an apocalyptic number.

It is an amenable number.

13038428 is a deficient number, since it is larger than the sum of its proper divisors (11534092).

13038428 is a wasteful number, since it uses less digits than its factorization.

13038428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250756 (or 250754 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 13038428 is about 3610.8763479244. The cubic root of 13038428 is about 235.3649257040.

The spelling of 13038428 in words is "thirteen million, thirty-eight thousand, four hundred twenty-eight".