13274664 has 64 divisors (see below), whose sum is σ = 36099840. Its totient is φ = 4043520.

The previous prime is 13274647. The next prime is 13274669. The reversal of 13274664 is 46647231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13274669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48849 + ... + 49119.

It is an arithmetic number, because the mean of its divisors is an integer number (564060).

Almost surely, 2^13274664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13274664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18049920).

13274664 is an abundant number, since it is smaller than the sum of its proper divisors (22825176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13274664 is a wasteful number, since it uses less digits than its factorization.

13274664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 446 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 13274664 is about 3643.4412304853. The cubic root of 13274664 is about 236.7779079859. Note that the first 3 decimals are identical.

The spelling of 13274664 in words is "thirteen million, two hundred seventy-four thousand, six hundred sixty-four".