13670290 has 16 divisors (see below), whose sum is σ = 25071768. Its totient is φ = 5364736.

The previous prime is 13670221. The next prime is 13670297. The reversal of 13670290 is 9207631.

It can be written as a sum of positive squares in 4 ways, for example, as 9247681 + 4422609 = 3041^2 + 2103^2 .

It is not an unprimeable number, because it can be changed into a prime (13670297) 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 7 ways as a sum of consecutive naturals, for example, 12367 + ... + 13426.

Almost surely, 2^13670290 is an apocalyptic number.

13670290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13670290 is a deficient number, since it is larger than the sum of its proper divisors (11401478).

13670290 is a wasteful number, since it uses less digits than its factorization.

13670290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25853.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13670290 is about 3697.3355271060. The cubic root of 13670290 is about 239.1071571209.

The spelling of 13670290 in words is "thirteen million, six hundred seventy thousand, two hundred ninety".