13428285 has 16 divisors (see below), whose sum is σ = 23138304. Its totient is φ = 6610752.

The previous prime is 13428271. The next prime is 13428319. The reversal of 13428285 is 58282431.

It is not a de Polignac number, because 13428285 - 2⁷ = 13428157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34237 + ... + 34626.

It is an arithmetic number, because the mean of its divisors is an integer number (1446144).

Almost surely, 2^13428285 is an apocalyptic number.

13428285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13428285 is a deficient number, since it is larger than the sum of its proper divisors (9710019).

13428285 is a wasteful number, since it uses less digits than its factorization.

13428285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68884.

The product of its digits is 15360, while the sum is 33.

The square root of 13428285 is about 3664.4624435243. The cubic root of 13428285 is about 237.6877776270.

The spelling of 13428285 in words is "thirteen million, four hundred twenty-eight thousand, two hundred eighty-five".