224239388 has 24 divisors (see below), whose sum is σ = 403934832. Its totient is φ = 108843264.

The previous prime is 224239361. The next prime is 224239391. The reversal of 224239388 is 883932422.

It is a super-2 number, since 2×224239388² = 100566606261229088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75956 + ... + 78852.

It is an arithmetic number, because the mean of its divisors is an integer number (16830618).

Almost surely, 2^224239388 is an apocalyptic number.

It is an amenable number.

224239388 is a deficient number, since it is larger than the sum of its proper divisors (179695444).

224239388 is a wasteful number, since it uses less digits than its factorization.

224239388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461 (or 3459 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 224239388 is about 14974.6248033131. The cubic root of 224239388 is about 607.5340634707.

The spelling of 224239388 in words is "two hundred twenty-four million, two hundred thirty-nine thousand, three hundred eighty-eight".