224399828 has 6 divisors (see below), whose sum is σ = 392699706. Its totient is φ = 112199912.

The previous prime is 224399821. The next prime is 224399837. The reversal of 224399828 is 828993422.

It can be written as a sum of positive squares in only one way, i.e., 222964624 + 1435204 = 14932^2 + 1198^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224399821) by changing a digit.

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 as a sum of consecutive naturals, namely, 28049975 + ... + 28049982.

It is an arithmetic number, because the mean of its divisors is an integer number (65449951).

Almost surely, 2^224399828 is an apocalyptic number.

It is an amenable number.

224399828 is a deficient number, since it is larger than the sum of its proper divisors (168299878).

224399828 is a wasteful number, since it uses less digits than its factorization.

224399828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56099961 (or 56099959 counting only the distinct ones).

The product of its digits is 497664, while the sum is 47.

The square root of 224399828 is about 14979.9809078650. The cubic root of 224399828 is about 607.6789228380.

The spelling of 224399828 in words is "two hundred twenty-four million, three hundred ninety-nine thousand, eight hundred twenty-eight".