13428745 has 8 divisors (see below), whose sum is σ = 17579520. Its totient is φ = 9766320.

The previous prime is 13428731. The next prime is 13428773. The reversal of 13428745 is 54782431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13428745 - 2⁷ = 13428617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13428745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122025 + ... + 122134.

It is an arithmetic number, because the mean of its divisors is an integer number (2197440).

Almost surely, 2^13428745 is an apocalyptic number.

It is an amenable number.

13428745 is a deficient number, since it is larger than the sum of its proper divisors (4150775).

13428745 is a wasteful number, since it uses less digits than its factorization.

13428745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244175.

The product of its digits is 26880, while the sum is 34.

The square root of 13428745 is about 3664.5252079908. The cubic root of 13428745 is about 237.6904916775.

The spelling of 13428745 in words is "thirteen million, four hundred twenty-eight thousand, seven hundred forty-five".