228663722 has 8 divisors (see below), whose sum is σ = 391994976. Its totient is φ = 97998732.

The previous prime is 228663709. The next prime is 228663751. The reversal of 228663722 is 227366822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8166548 + ... + 8166575.

It is an arithmetic number, because the mean of its divisors is an integer number (48999372).

Almost surely, 2^228663722 is an apocalyptic number.

228663722 is a deficient number, since it is larger than the sum of its proper divisors (163331254).

228663722 is a wasteful number, since it uses less digits than its factorization.

228663722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16333132.

The product of its digits is 96768, while the sum is 38.

The square root of 228663722 is about 15121.6309305577. The cubic root of 228663722 is about 611.5037004028.

The spelling of 228663722 in words is "two hundred twenty-eight million, six hundred sixty-three thousand, seven hundred twenty-two".