13021290 has 64 divisors (see below), whose sum is σ = 35942400. Its totient is φ = 3350592.

The previous prime is 13021277. The next prime is 13021331. The reversal of 13021290 is 9212031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6999 + ... + 8661.

It is an arithmetic number, because the mean of its divisors is an integer number (561600).

Almost surely, 2^13021290 is an apocalyptic number.

13021290 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 13021290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17971200).

13021290 is an abundant number, since it is smaller than the sum of its proper divisors (22921110).

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

13021290 is a wasteful number, since it uses less digits than its factorization.

13021290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13021290 is about 3608.5024594699. The cubic root of 13021290 is about 235.2617575227.

The spelling of 13021290 in words is "thirteen million, twenty-one thousand, two hundred ninety".