13355638 has 8 divisors (see below), whose sum is σ = 20088288. Its totient is φ = 6659544.

The previous prime is 13355623. The next prime is 13355669. The reversal of 13355638 is 83655331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×13355638⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8206 + ... + 9697.

It is an arithmetic number, because the mean of its divisors is an integer number (2511036).

Almost surely, 2^13355638 is an apocalyptic number.

13355638 is a deficient number, since it is larger than the sum of its proper divisors (6732650).

13355638 is a wasteful number, since it uses less digits than its factorization.

13355638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18278.

The product of its digits is 32400, while the sum is 34.

The square root of 13355638 is about 3654.5366327347. The cubic root of 13355638 is about 237.2583721692.

The spelling of 13355638 in words is "thirteen million, three hundred fifty-five thousand, six hundred thirty-eight".