13224390 has 64 divisors (see below), whose sum is σ = 33094656. Its totient is φ = 3379712.

The previous prime is 13224347. The next prime is 13224391. The reversal of 13224390 is 9342231.

13224390 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 a self number, because there is not a number n which added to its sum of digits gives 13224390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224391) 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, 116974 + ... + 117086.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^13224390 is an apocalyptic number.

13224390 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 13224390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16547328).

13224390 is an abundant number, since it is smaller than the sum of its proper divisors (19870266).

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

13224390 is a wasteful number, since it uses less digits than its factorization.

13224390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13224390 is about 3636.5354391233. The cubic root of 13224390 is about 236.4786202695.

The spelling of 13224390 in words is "thirteen million, two hundred twenty-four thousand, three hundred ninety".