13120770 has 64 divisors (see below), whose sum is σ = 35925120. Its totient is φ = 3038208.

The previous prime is 13120759. The next prime is 13120777. The reversal of 13120770 is 7702131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13120777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5641 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (561330).

Almost surely, 2^13120770 is an apocalyptic number.

13120770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13120770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17962560).

13120770 is an abundant number, since it is smaller than the sum of its proper divisors (22804350).

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

13120770 is a wasteful number, since it uses less digits than its factorization.

13120770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 13120770 is about 3622.2603440393. The cubic root of 13120770 is about 235.8593555368.

The spelling of 13120770 in words is "thirteen million, one hundred twenty thousand, seven hundred seventy".