13428502 has 4 divisors (see below), whose sum is σ = 20142756. Its totient is φ = 6714250.

The previous prime is 13428491. The next prime is 13428509. The reversal of 13428502 is 20582431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20582431 = 29 ⋅709739.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357124 + ... + 3357127.

It is an arithmetic number, because the mean of its divisors is an integer number (5035689).

Almost surely, 2^13428502 is an apocalyptic number.

13428502 is a deficient number, since it is larger than the sum of its proper divisors (6714254).

13428502 is an equidigital number, since it uses as much as digits as its factorization.

13428502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714253.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13428502 is about 3664.4920521131. The cubic root of 13428502 is about 237.6890579585.

The spelling of 13428502 in words is "thirteen million, four hundred twenty-eight thousand, five hundred two".