13070840 has 64 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 4959360.

The previous prime is 13070833. The next prime is 13070891. The reversal of 13070840 is 4807031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102857 + ... + 102983.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^13070840 is an apocalyptic number.

13070840 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 13070840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15482880).

13070840 is an abundant number, since it is smaller than the sum of its proper divisors (17894920).

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

13070840 is a wasteful number, since it uses less digits than its factorization.

13070840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 13070840 is about 3615.3616693216. The cubic root of 13070840 is about 235.5597941697.

Adding to 13070840 its reverse (4807031), we get a palindrome (17877871).

The spelling of 13070840 in words is "thirteen million, seventy thousand, eight hundred forty".