13279390 has 24 divisors (see below), whose sum is σ = 24771240. Its totient is φ = 5125344.

The previous prime is 13279373. The next prime is 13279391. The reversal of 13279390 is 9397231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13279391) 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 11 ways as a sum of consecutive naturals, for example, 7621 + ... + 9199.

It is an arithmetic number, because the mean of its divisors is an integer number (1032135).

Almost surely, 2^13279390 is an apocalyptic number.

13279390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13279390 is a deficient number, since it is larger than the sum of its proper divisors (11491850).

13279390 is a wasteful number, since it uses less digits than its factorization.

13279390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13279390 is about 3644.0897354483. The cubic root of 13279390 is about 236.8060036028.

The spelling of 13279390 in words is "thirteen million, two hundred seventy-nine thousand, three hundred ninety".