13490278 has 8 divisors (see below), whose sum is σ = 20933280. Its totient is φ = 6512520.

The previous prime is 13490251. The next prime is 13490293. The reversal of 13490278 is 87209431.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116238 + ... + 116353.

It is an arithmetic number, because the mean of its divisors is an integer number (2616660).

Almost surely, 2^13490278 is an apocalyptic number.

13490278 is a deficient number, since it is larger than the sum of its proper divisors (7443002).

13490278 is a wasteful number, since it uses less digits than its factorization.

13490278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232622.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 13490278 is about 3672.9113792739. The cubic root of 13490278 is about 238.0529858726.

The spelling of 13490278 in words is "thirteen million, four hundred ninety thousand, two hundred seventy-eight".