228577000 has 32 divisors (see below), whose sum is σ = 534872520. Its totient is φ = 91430400.

The previous prime is 228576991. The next prime is 228577001. The reversal of 228577000 is 775822.

It can be written as a sum of positive squares in 4 ways, for example, as 16990884 + 211586116 = 4122^2 + 14546^2 .

It is not an unprimeable number, because it can be changed into a prime (228577001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113289 + ... + 115288.

Almost surely, 2^228577000 is an apocalyptic number.

228577000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228577000 is an abundant number, since it is smaller than the sum of its proper divisors (306295520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228577000 is a wasteful number, since it uses less digits than its factorization.

228577000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228598 (or 228584 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 228577000 is about 15118.7631769269. The cubic root of 228577000 is about 611.4263852244.

The spelling of 228577000 in words is "two hundred twenty-eight million, five hundred seventy-seven thousand".