228621570 has 32 divisors (see below), whose sum is σ = 549471168. Its totient is φ = 60879168.

The previous prime is 228621553. The next prime is 228621571. The reversal of 228621570 is 75126822.

It is not an unprimeable number, because it can be changed into a prime (228621571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17677 + ... + 27743.

It is an arithmetic number, because the mean of its divisors is an integer number (17170974).

Almost surely, 2^228621570 is an apocalyptic number.

228621570 is an abundant number, since it is smaller than the sum of its proper divisors (320849598).

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

228621570 is a wasteful number, since it uses less digits than its factorization.

228621570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 228621570 is about 15120.2371013156. The cubic root of 228621570 is about 611.4661231143.

The spelling of 228621570 in words is "two hundred twenty-eight million, six hundred twenty-one thousand, five hundred seventy".