13321390 has 16 divisors (see below), whose sum is σ = 24163920. Its totient is φ = 5287360.

The previous prime is 13321379. The next prime is 13321397. The reversal of 13321390 is 9312331.

13321390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3775 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (1510245).

Almost surely, 2^13321390 is an apocalyptic number.

13321390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13321390 is a deficient number, since it is larger than the sum of its proper divisors (10842530).

13321390 is a wasteful number, since it uses less digits than its factorization.

13321390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13321390 is about 3649.8479420381. The cubic root of 13321390 is about 237.0553972113.

The spelling of 13321390 in words is "thirteen million, three hundred twenty-one thousand, three hundred ninety".