13428306 has 12 divisors (see below), whose sum is σ = 29094702. Its totient is φ = 4476096.

The previous prime is 13428271. The next prime is 13428319. The reversal of 13428306 is 60382431.

It is a happy number.

13428306 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12852225 + 576081 = 3585^2 + 759^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13428306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 372991 + ... + 373026.

Almost surely, 2^13428306 is an apocalyptic number.

13428306 is an abundant number, since it is smaller than the sum of its proper divisors (15666396).

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

13428306 is a wasteful number, since it uses less digits than its factorization.

13428306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746025 (or 746022 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13428306 is about 3664.4653088820. The cubic root of 13428306 is about 237.6879015306.

The spelling of 13428306 in words is "thirteen million, four hundred twenty-eight thousand, three hundred six".