169228224 has 224 divisors, whose sum is σ = 563270400. Its totient is φ = 49351680.

The previous prime is 169228223. The next prime is 169228321. The reversal of 169228224 is 422822961.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169228223) 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, 551079 + ... + 551385.

It is an arithmetic number, because the mean of its divisors is an integer number (2514600).

Almost surely, 2^169228224 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 169228224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281635200).

169228224 is an abundant number, since it is smaller than the sum of its proper divisors (394042176).

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

169228224 is a wasteful number, since it uses less digits than its factorization.

169228224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 352 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 169228224 is about 13008.7748846692. The cubic root of 169228224 is about 553.1262449843.

The spelling of 169228224 in words is "one hundred sixty-nine million, two hundred twenty-eight thousand, two hundred twenty-four".