13390224 has 40 divisors (see below), whose sum is σ = 35018592. Its totient is φ = 4408320.

The previous prime is 13390219. The next prime is 13390241. The reversal of 13390224 is 42209331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 13390194 and 13390203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2304 + ... + 5664.

Almost surely, 2^13390224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13390224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17509296).

13390224 is an abundant number, since it is smaller than the sum of its proper divisors (21628368).

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

13390224 is a wasteful number, since it uses less digits than its factorization.

13390224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455 (or 3449 counting only the distinct ones).

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

The square root of 13390224 is about 3659.2655000697. The cubic root of 13390224 is about 237.4629984831.

Adding to 13390224 its reverse (42209331), we get a palindrome (55599555).

The spelling of 13390224 in words is "thirteen million, three hundred ninety thousand, two hundred twenty-four".