228023722 has 4 divisors (see below), whose sum is σ = 342035586. Its totient is φ = 114011860.

The previous prime is 228023707. The next prime is 228023729. The reversal of 228023722 is 227320822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215766721 + 12257001 = 14689^2 + 3501^2 .

It is not an unprimeable number, because it can be changed into a prime (228023729) by changing a digit.

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 as a sum of consecutive naturals, namely, 57005929 + ... + 57005932.

Almost surely, 2^228023722 is an apocalyptic number.

228023722 is a deficient number, since it is larger than the sum of its proper divisors (114011864).

228023722 is a wasteful number, since it uses less digits than its factorization.

228023722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114011863.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 228023722 is about 15100.4543640249. The cubic root of 228023722 is about 610.9326608901.

The spelling of 228023722 in words is "two hundred twenty-eight million, twenty-three thousand, seven hundred twenty-two".