13641388 has 6 divisors (see below), whose sum is σ = 23872436. Its totient is φ = 6820692.

The previous prime is 13641379. The next prime is 13641389. The reversal of 13641388 is 88314631.

It is not an unprimeable number, because it can be changed into a prime (13641389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705170 + ... + 1705177.

Almost surely, 2^13641388 is an apocalyptic number.

It is an amenable number.

13641388 is a deficient number, since it is larger than the sum of its proper divisors (10231048).

13641388 is a wasteful number, since it uses less digits than its factorization.

13641388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410351 (or 3410349 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 13641388 is about 3693.4249687790. The cubic root of 13641388 is about 238.9385298518.

The spelling of 13641388 in words is "thirteen million, six hundred forty-one thousand, three hundred eighty-eight".