13109790 has 16 divisors (see below), whose sum is σ = 31463568. Its totient is φ = 3495936.

The previous prime is 13109779. The next prime is 13109809. The reversal of 13109790 is 9790131.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 436993 = 13109790 / (1 + 3 + 1 + 0 + 9 + 7 + 9 + 0).

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, 218467 + ... + 218526.

It is an arithmetic number, because the mean of its divisors is an integer number (1966473).

Almost surely, 2^13109790 is an apocalyptic number.

13109790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13109790 is an abundant number, since it is smaller than the sum of its proper divisors (18353778).

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

13109790 is a wasteful number, since it uses less digits than its factorization.

13109790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437003.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 13109790 is about 3620.7443986009. The cubic root of 13109790 is about 235.7935449058.

Subtracting from 13109790 its sum of digits (30), we obtain a triangular number (13109760 = T₅₁₂₀).

The spelling of 13109790 in words is "thirteen million, one hundred nine thousand, seven hundred ninety".