228183881 has 4 divisors (see below), whose sum is σ = 228307200. Its totient is φ = 228060564.

The previous prime is 228183871. The next prime is 228183883. The reversal of 228183881 is 188381822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228183881 - 2¹⁴ = 228167497 is a prime.

It is a super-2 number, since 2×228183881² = 104135767096444322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228183883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58841 + ... + 62598.

It is an arithmetic number, because the mean of its divisors is an integer number (57076800).

Almost surely, 2^228183881 is an apocalyptic number.

It is an amenable number.

228183881 is a deficient number, since it is larger than the sum of its proper divisors (123319).

228183881 is a wasteful number, since it uses less digits than its factorization.

228183881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123318.

The product of its digits is 49152, while the sum is 41.

The square root of 228183881 is about 15105.7565517256. The cubic root of 228183881 is about 611.0756627727.

The spelling of 228183881 in words is "two hundred twenty-eight million, one hundred eighty-three thousand, eight hundred eighty-one".