13224870 has 80 divisors (see below), whose sum is σ = 36851760. Its totient is φ = 3398976.

The previous prime is 13224863. The next prime is 13224881. The reversal of 13224870 is 7842231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23209 + ... + 23771.

It is an arithmetic number, because the mean of its divisors is an integer number (460647).

Almost surely, 2^13224870 is an apocalyptic number.

13224870 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 13224870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18425880).

13224870 is an abundant number, since it is smaller than the sum of its proper divisors (23626890).

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

13224870 is a wasteful number, since it uses less digits than its factorization.

13224870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13224870 is about 3636.6014354064. The cubic root of 13224870 is about 236.4814813558.

The spelling of 13224870 in words is "thirteen million, two hundred twenty-four thousand, eight hundred seventy".