228729358 has 16 divisors (see below), whose sum is σ = 403076016. Its totient is φ = 95970240.

The previous prime is 228729349. The next prime is 228729383. The reversal of 228729358 is 853927822.

It is a super-2 number, since 2×228729358² = 104634238422184328, 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399591 + ... + 400162.

It is an arithmetic number, because the mean of its divisors is an integer number (25192251).

Almost surely, 2^228729358 is an apocalyptic number.

228729358 is a deficient number, since it is larger than the sum of its proper divisors (174346658).

228729358 is a wasteful number, since it uses less digits than its factorization.

228729358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799779.

The product of its digits is 483840, while the sum is 46.

The square root of 228729358 is about 15123.8010433885. The cubic root of 228729358 is about 611.5622038052.

The spelling of 228729358 in words is "two hundred twenty-eight million, seven hundred twenty-nine thousand, three hundred fifty-eight".