13393428 has 24 divisors (see below), whose sum is σ = 31418688. Its totient is φ = 4440576.

The previous prime is 13393427. The next prime is 13393441. The reversal of 13393428 is 82439331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13393427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576 + ... + 5207.

It is an arithmetic number, because the mean of its divisors is an integer number (1309112).

Almost surely, 2^13393428 is an apocalyptic number.

It is an amenable number.

13393428 is an abundant number, since it is smaller than the sum of its proper divisors (18025260).

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

13393428 is a wasteful number, since it uses less digits than its factorization.

13393428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983 (or 5981 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 13393428 is about 3659.7032666597. The cubic root of 13393428 is about 237.4819369457.

The spelling of 13393428 in words is "thirteen million, three hundred ninety-three thousand, four hundred twenty-eight".