13209290 has 8 divisors (see below), whose sum is σ = 23776740. Its totient is φ = 5283712.

The previous prime is 13209281. The next prime is 13209293. The reversal of 13209290 is 9290231.

13209290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 966289 = 3499^2 + 983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13209293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660455 + ... + 660474.

Almost surely, 2^13209290 is an apocalyptic number.

13209290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13209290 is a deficient number, since it is larger than the sum of its proper divisors (10567450).

13209290 is a wasteful number, since it uses less digits than its factorization.

13209290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320936.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 13209290 is about 3634.4586942212. The cubic root of 13209290 is about 236.3885798941.

The spelling of 13209290 in words is "thirteen million, two hundred nine thousand, two hundred ninety".