13294840 has 64 divisors (see below), whose sum is σ = 33132960. Its totient is φ = 4769280.

The previous prime is 13294837. The next prime is 13294849. The reversal of 13294840 is 4849231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13294849) 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, 18895 + ... + 19585.

Almost surely, 2^13294840 is an apocalyptic number.

13294840 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 13294840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16566480).

13294840 is an abundant number, since it is smaller than the sum of its proper divisors (19838120).

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

13294840 is a wasteful number, since it uses less digits than its factorization.

13294840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13294840 is about 3646.2089901705. The cubic root of 13294840 is about 236.8978058813.

The spelling of 13294840 in words is "thirteen million, two hundred ninety-four thousand, eight hundred forty".