13402290 has 64 divisors (see below), whose sum is σ = 37169280. Its totient is φ = 3056640.

The previous prime is 13402253. The next prime is 13402297. The reversal of 13402290 is 9220431.

It is not an unprimeable number, because it can be changed into a prime (13402297) 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, 4416 + ... + 6804.

It is an arithmetic number, because the mean of its divisors is an integer number (580770).

Almost surely, 2^13402290 is an apocalyptic number.

13402290 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 13402290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18584640).

13402290 is an abundant number, since it is smaller than the sum of its proper divisors (23766990).

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

13402290 is a wasteful number, since it uses less digits than its factorization.

13402290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13402290 is about 3660.9138203460. The cubic root of 13402290 is about 237.5343034477.

The spelling of 13402290 in words is "thirteen million, four hundred two thousand, two hundred ninety".