13219224 has 16 divisors (see below), whose sum is σ = 33048120. Its totient is φ = 4406400.

The previous prime is 13219211. The next prime is 13219229. The reversal of 13219224 is 42291231.

13219224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 550801 = 13219224 / (1 + 3 + 2 + 1 + 9 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 13219194 and 13219203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13219229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275377 + ... + 275424.

Almost surely, 2^13219224 is an apocalyptic number.

It is an amenable number.

13219224 is an abundant number, since it is smaller than the sum of its proper divisors (19828896).

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

13219224 is a wasteful number, since it uses less digits than its factorization.

13219224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550810 (or 550806 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 13219224 is about 3635.8250783007. The cubic root of 13219224 is about 236.4478234448.

The spelling of 13219224 in words is "thirteen million, two hundred nineteen thousand, two hundred twenty-four".