228752073 has 24 divisors (see below), whose sum is σ = 372506400. Its totient is φ = 138635640.

The previous prime is 228752059. The next prime is 228752099. The reversal of 228752073 is 370257822.

It is a happy number.

It is not a de Polignac number, because 228752073 - 2⁴ = 228752057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228752023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31743 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (15521100).

Almost surely, 2^228752073 is an apocalyptic number.

It is an amenable number.

228752073 is a deficient number, since it is larger than the sum of its proper divisors (143754327).

228752073 is a wasteful number, since it uses less digits than its factorization.

228752073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70050 (or 70033 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 228752073 is about 15124.5519933650. The cubic root of 228752073 is about 611.5824477823.

The spelling of 228752073 in words is "two hundred twenty-eight million, seven hundred fifty-two thousand, seventy-three".