228558722 has 16 divisors (see below), whose sum is σ = 404454912. Its totient is φ = 94793760.

The previous prime is 228558719. The next prime is 228558749. The reversal of 228558722 is 227855822.

It is a self number, because there is not a number n which added to its sum of digits gives 228558722.

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, 262883 + ... + 263750.

It is an arithmetic number, because the mean of its divisors is an integer number (25278432).

Almost surely, 2^228558722 is an apocalyptic number.

228558722 is a deficient number, since it is larger than the sum of its proper divisors (175896190).

228558722 is a wasteful number, since it uses less digits than its factorization.

228558722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526673.

The product of its digits is 179200, while the sum is 41.

The square root of 228558722 is about 15118.1586841784. The cubic root of 228558722 is about 611.4100873622.

The spelling of 228558722 in words is "two hundred twenty-eight million, five hundred fifty-eight thousand, seven hundred twenty-two".