13049428 has 36 divisors (see below), whose sum is σ = 27566112. Its totient is φ = 5294160.

The previous prime is 13049417. The next prime is 13049431. The reversal of 13049428 is 82494031.

13049428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13049428² = 340575142254368, 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 13049428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9463 + ... + 10753.

Almost surely, 2^13049428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13049428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13783056).

13049428 is an abundant number, since it is smaller than the sum of its proper divisors (14516684).

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

13049428 is a wasteful number, since it uses less digits than its factorization.

13049428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13049428 is about 3612.3992027460. The cubic root of 13049428 is about 235.4310964224.

The spelling of 13049428 in words is "thirteen million, forty-nine thousand, four hundred twenty-eight".