13381874 has 20 divisors (see below), whose sum is σ = 22128270. Its totient is φ = 6069360.

The previous prime is 13381859. The next prime is 13381891. The reversal of 13381874 is 47818331.

It can be written as a sum of positive squares in only one way, i.e., 9150625 + 4231249 = 3025^2 + 2057^2 .

It is a Curzon number.

It is a nialpdrome in base 11.

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 9 ways as a sum of consecutive naturals, for example, 29054 + ... + 29510.

Almost surely, 2^13381874 is an apocalyptic number.

13381874 is a deficient number, since it is larger than the sum of its proper divisors (8746396).

13381874 is an frugal number, since it uses more digits than its factorization.

13381874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 470 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 13381874 is about 3658.1243827951. The cubic root of 13381874 is about 237.4136284269.

The spelling of 13381874 in words is "thirteen million, three hundred eighty-one thousand, eight hundred seventy-four".