13274638 has 16 divisors (see below), whose sum is σ = 22024800. Its totient is φ = 5960736.

The previous prime is 13274629. The next prime is 13274641. The reversal of 13274638 is 83647231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5938 + ... + 7861.

It is an arithmetic number, because the mean of its divisors is an integer number (1376550).

Almost surely, 2^13274638 is an apocalyptic number.

13274638 is a deficient number, since it is larger than the sum of its proper divisors (8750162).

13274638 is a wasteful number, since it uses less digits than its factorization.

13274638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13851.

The product of its digits is 24192, while the sum is 34.

The square root of 13274638 is about 3643.4376624282. The cubic root of 13274638 is about 236.7777533999. Note that the first 4 decimals are identical.

The spelling of 13274638 in words is "thirteen million, two hundred seventy-four thousand, six hundred thirty-eight".