224728372 has 24 divisors (see below), whose sum is σ = 454265280. Its totient is φ = 96140160.

The previous prime is 224728351. The next prime is 224728381. The reversal of 224728372 is 273827422.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 149472 + ... + 150967.

It is an arithmetic number, because the mean of its divisors is an integer number (18927720).

Almost surely, 2^224728372 is an apocalyptic number.

224728372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

224728372 is an abundant number, since it is smaller than the sum of its proper divisors (229536908).

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

224728372 is a wasteful number, since it uses less digits than its factorization.

224728372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300471 (or 300469 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 224728372 is about 14990.9429990244. The cubic root of 224728372 is about 607.9753459821.

The spelling of 224728372 in words is "two hundred twenty-four million, seven hundred twenty-eight thousand, three hundred seventy-two".