13276240 has 40 divisors (see below), whose sum is σ = 31033728. Its totient is φ = 5281920.

The previous prime is 13276217. The next prime is 13276261. The reversal of 13276240 is 4267231.

It is a tau number, because it is divible by the number of its divisors (40).

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, 20725 + ... + 21355.

Almost surely, 2^13276240 is an apocalyptic number.

13276240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13276240 is the 2104-th octagonal number.

It is an amenable number.

13276240 is an abundant number, since it is smaller than the sum of its proper divisors (17757488).

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

13276240 is a wasteful number, since it uses less digits than its factorization.

13276240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 13276240 is about 3643.6575031141. The cubic root of 13276240 is about 236.7872778958.

Subtracting from 13276240 its reverse (4267231), we obtain a palindrome (9009009).

The spelling of 13276240 in words is "thirteen million, two hundred seventy-six thousand, two hundred forty".