228752818 has 16 divisors (see below), whose sum is σ = 412787520. Its totient is φ = 92876976.

The previous prime is 228752809. The next prime is 228752857. The reversal of 228752818 is 818257822.

It is a super-2 number, since 2×228752818² = 104655703485882248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429721 + ... + 430252.

It is an arithmetic number, because the mean of its divisors is an integer number (25799220).

Almost surely, 2^228752818 is an apocalyptic number.

228752818 is a deficient number, since it is larger than the sum of its proper divisors (184034702).

228752818 is a wasteful number, since it uses less digits than its factorization.

228752818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860001.

The product of its digits is 143360, while the sum is 43.

The square root of 228752818 is about 15124.5766221736. The cubic root of 228752818 is about 611.5831117157.

The spelling of 228752818 in words is "two hundred twenty-eight million, seven hundred fifty-two thousand, eight hundred eighteen".