13287388 has 12 divisors (see below), whose sum is σ = 23295160. Its totient is φ = 6631632.

The previous prime is 13287383. The next prime is 13287389. The reversal of 13287388 is 88378231.

It is a self number, because there is not a number n which added to its sum of digits gives 13287388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13287383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258 + ... + 5161.

Almost surely, 2^13287388 is an apocalyptic number.

It is an amenable number.

13287388 is a deficient number, since it is larger than the sum of its proper divisors (10007772).

13287388 is a wasteful number, since it uses less digits than its factorization.

13287388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036 (or 6034 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 13287388 is about 3645.1869636550. The cubic root of 13287388 is about 236.8535357637.

The spelling of 13287388 in words is "thirteen million, two hundred eighty-seven thousand, three hundred eighty-eight".