228367018 has 32 divisors (see below), whose sum is σ = 408457728. Its totient is φ = 94540800.

The previous prime is 228366973. The next prime is 228367033. The reversal of 228367018 is 810763822.

It is a super-4 number, since 4×228367018⁴ (a number of 35 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1746 + ... + 21442.

It is an arithmetic number, because the mean of its divisors is an integer number (12764304).

Almost surely, 2^228367018 is an apocalyptic number.

228367018 is a deficient number, since it is larger than the sum of its proper divisors (180090710).

228367018 is a wasteful number, since it uses less digits than its factorization.

228367018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19758.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 228367018 is about 15111.8171640607. The cubic root of 228367018 is about 611.2390991458.

The spelling of 228367018 in words is "two hundred twenty-eight million, three hundred sixty-seven thousand, eighteen".