228516692 has 6 divisors (see below), whose sum is σ = 399904218. Its totient is φ = 114258344.

The previous prime is 228516689. The next prime is 228516721. The reversal of 228516692 is 296615822.

It can be written as a sum of positive squares in only one way, i.e., 227587396 + 929296 = 15086^2 + 964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28564583 + ... + 28564590.

It is an arithmetic number, because the mean of its divisors is an integer number (66650703).

Almost surely, 2^228516692 is an apocalyptic number.

It is an amenable number.

228516692 is a deficient number, since it is larger than the sum of its proper divisors (171387526).

228516692 is a wasteful number, since it uses less digits than its factorization.

228516692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57129177 (or 57129175 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 228516692 is about 15116.7685700351. The cubic root of 228516692 is about 611.3726073642.

The spelling of 228516692 in words is "two hundred twenty-eight million, five hundred sixteen thousand, six hundred ninety-two".