13299990 has 64 divisors (see below), whose sum is σ = 35707392. Its totient is φ = 3142400.

The previous prime is 13299989. The next prime is 13299991. The reversal of 13299990 is 9999231.

It is a happy number.

13299990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13299989) and next prime (13299991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13299991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13039 + ... + 14021.

It is an arithmetic number, because the mean of its divisors is an integer number (557928).

Almost surely, 2^13299990 is an apocalyptic number.

13299990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13299990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17853696).

13299990 is an abundant number, since it is smaller than the sum of its proper divisors (22407402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13299990 is a wasteful number, since it uses less digits than its factorization.

13299990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 13299990 is about 3646.9151347406. The cubic root of 13299990 is about 236.9283908351.

It can be divided in two parts, 13 and 299990, that added together give a palindrome (300003).

The spelling of 13299990 in words is "thirteen million, two hundred ninety-nine thousand, nine hundred ninety".