228545858 has 24 divisors (see below), whose sum is σ = 370117188. Its totient is φ = 105477632.

The previous prime is 228545831. The next prime is 228545869. The reversal of 228545858 is 858545822.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 127080529 + 101465329 = 11273^2 + 10073^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94310 + ... + 96702.

Almost surely, 2^228545858 is an apocalyptic number.

228545858 is a deficient number, since it is larger than the sum of its proper divisors (141571330).

228545858 is a wasteful number, since it uses less digits than its factorization.

228545858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518 (or 2465 counting only the distinct ones).

The product of its digits is 1024000, while the sum is 47.

The square root of 228545858 is about 15117.7332295553. The cubic root of 228545858 is about 611.3986164561.

The spelling of 228545858 in words is "two hundred twenty-eight million, five hundred forty-five thousand, eight hundred fifty-eight".