228510724 has 12 divisors (see below), whose sum is σ = 430654924. Its totient is φ = 105466464.

The previous prime is 228510673. The next prime is 228510743. The reversal of 228510724 is 427015822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85229824 + 143280900 = 9232^2 + 11970^2 .

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 3 ways as a sum of consecutive naturals, for example, 2197167 + ... + 2197270.

Almost surely, 2^228510724 is an apocalyptic number.

It is an amenable number.

228510724 is a deficient number, since it is larger than the sum of its proper divisors (202144200).

228510724 is a wasteful number, since it uses less digits than its factorization.

228510724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394454 (or 4394452 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 228510724 is about 15116.5711720615. The cubic root of 228510724 is about 611.3672850637.

The spelling of 228510724 in words is "two hundred twenty-eight million, five hundred ten thousand, seven hundred twenty-four".