13277240 has 32 divisors (see below), whose sum is σ = 30289680. Its totient is φ = 5236992.

The previous prime is 13277237. The next prime is 13277267. The reversal of 13277240 is 4277231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 5193.

Almost surely, 2^13277240 is an apocalyptic number.

13277240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13277240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15144840).

13277240 is an abundant number, since it is smaller than the sum of its proper divisors (17012440).

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

13277240 is a wasteful number, since it uses less digits than its factorization.

13277240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631 (or 4627 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 13277240 is about 3643.7947252830. The cubic root of 13277240 is about 236.7932228855.

Subtracting from 13277240 its reverse (4277231), we obtain a palindrome (9000009).

The spelling of 13277240 in words is "thirteen million, two hundred seventy-seven thousand, two hundred forty".