13788356 has 12 divisors (see below), whose sum is σ = 24379068. Its totient is φ = 6822912.

The previous prime is 13788353. The next prime is 13788361. The reversal of 13788356 is 65388731.

It can be written as a sum of positive squares in 2 ways, for example, as 8904256 + 4884100 = 2984^2 + 2210^2 .

It is a super-2 number, since 2×13788356² = 380237522365472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13788353) 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, 17381 + ... + 18156.

It is an arithmetic number, because the mean of its divisors is an integer number (2031589).

Almost surely, 2^13788356 is an apocalyptic number.

It is an amenable number.

13788356 is a deficient number, since it is larger than the sum of its proper divisors (10590712).

13788356 is a wasteful number, since it uses less digits than its factorization.

13788356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35638 (or 35636 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 13788356 is about 3713.2675637503. The cubic root of 13788356 is about 239.7935493116.

The spelling of 13788356 in words is "thirteen million, seven hundred eighty-eight thousand, three hundred fifty-six".