224729928 has 24 divisors (see below), whose sum is σ = 608643750. Its totient is φ = 74909952.

The previous prime is 224729873. The next prime is 224729951. The reversal of 224729928 is 829927422.

It can be written as a sum of positive squares in only one way, i.e., 189943524 + 34786404 = 13782^2 + 5898^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 1560553 + ... + 1560696.

Almost surely, 2^224729928 is an apocalyptic number.

It is an amenable number.

224729928 is an abundant number, since it is smaller than the sum of its proper divisors (383913822).

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

224729928 is a wasteful number, since it uses less digits than its factorization.

224729928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121261 (or 3121254 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 224729928 is about 14990.9948969373. The cubic root of 224729928 is about 607.9767491686.

It can be divided in two parts, 22472 and 9928, that added together give a square (32400 = 180²).

The spelling of 224729928 in words is "two hundred twenty-four million, seven hundred twenty-nine thousand, nine hundred twenty-eight".