13043870 has 32 divisors (see below), whose sum is σ = 27703296. Its totient is φ = 4327200.

The previous prime is 13043857. The next prime is 13043873. The reversal of 13043870 is 7834031.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836 + ... + 5175.

It is an arithmetic number, because the mean of its divisors is an integer number (865728).

Almost surely, 2^13043870 is an apocalyptic number.

13043870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13043870 is an abundant number, since it is smaller than the sum of its proper divisors (14659426).

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

13043870 is a wasteful number, since it uses less digits than its factorization.

13043870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13043870 is about 3611.6298259927. The cubic root of 13043870 is about 235.3976668127.

The spelling of 13043870 in words is "thirteen million, forty-three thousand, eight hundred seventy".