13774120 has 16 divisors (see below), whose sum is σ = 30991860. Its totient is φ = 5509632.

The previous prime is 13774109. The next prime is 13774129. The reversal of 13774120 is 2147731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13003236 + 770884 = 3606^2 + 878^2 .

It is not an unprimeable number, because it can be changed into a prime (13774129) 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, 172137 + ... + 172216.

Almost surely, 2^13774120 is an apocalyptic number.

13774120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13774120 is an abundant number, since it is smaller than the sum of its proper divisors (17217740).

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

13774120 is a wasteful number, since it uses less digits than its factorization.

13774120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344364 (or 344360 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 13774120 is about 3711.3501586350. The cubic root of 13774120 is about 239.7109947154.

The spelling of 13774120 in words is "thirteen million, seven hundred seventy-four thousand, one hundred twenty".