228263881 has 8 divisors (see below), whose sum is σ = 236620800. Its totient is φ = 219969120.

The previous prime is 228263863. The next prime is 228263899. The reversal of 228263881 is 188362822.

It is an interprime number because it is at equal distance from previous prime (228263863) and next prime (228263899).

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

It is a cyclic number.

It is not a de Polignac number, because 228263881 - 2¹³ = 228255689 is a prime.

It is a super-2 number, since 2×228263881² = 104208798738364322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228263801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7996 + ... + 22813.

It is an arithmetic number, because the mean of its divisors is an integer number (29577600).

Almost surely, 2^228263881 is an apocalyptic number.

It is an amenable number.

228263881 is a deficient number, since it is larger than the sum of its proper divisors (8356919).

228263881 is a wasteful number, since it uses less digits than its factorization.

228263881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31079.

The product of its digits is 73728, while the sum is 40.

The square root of 228263881 is about 15108.4043168033. The cubic root of 228263881 is about 611.1470676719.

The spelling of 228263881 in words is "two hundred twenty-eight million, two hundred sixty-three thousand, eight hundred eighty-one".