13400356 has 12 divisors (see below), whose sum is σ = 23693068. Its totient is φ = 6630912.

The previous prime is 13400353. The next prime is 13400363. The reversal of 13400356 is 65300431.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 9400356 = 2000^2 + 3066^2 .

It is not an unprimeable number, because it can be changed into a prime (13400353) 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 3 ways as a sum of consecutive naturals, for example, 16881 + ... + 17656.

Almost surely, 2^13400356 is an apocalyptic number.

It is an amenable number.

13400356 is a deficient number, since it is larger than the sum of its proper divisors (10292712).

13400356 is a wasteful number, since it uses less digits than its factorization.

13400356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34638 (or 34636 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13400356 is about 3660.6496691161. The cubic root of 13400356 is about 237.5228772053.

Adding to 13400356 its reverse (65300431), we get a palindrome (78700787).

The spelling of 13400356 in words is "thirteen million, four hundred thousand, three hundred fifty-six".