224429388 has 12 divisors (see below), whose sum is σ = 523668600. Its totient is φ = 74809792.

The previous prime is 224429369. The next prime is 224429399. The reversal of 224429388 is 883924422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9351213 + ... + 9351236.

It is an arithmetic number, because the mean of its divisors is an integer number (43639050).

Almost surely, 2^224429388 is an apocalyptic number.

It is an amenable number.

224429388 is an abundant number, since it is smaller than the sum of its proper divisors (299239212).

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

224429388 is a wasteful number, since it uses less digits than its factorization.

224429388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18702456 (or 18702454 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 224429388 is about 14980.9675254971. The cubic root of 224429388 is about 607.7056046770.

The spelling of 224429388 in words is "two hundred twenty-four million, four hundred twenty-nine thousand, three hundred eighty-eight".