228280936 has 16 divisors (see below), whose sum is σ = 460952100. Its totient is φ = 105360384.

The previous prime is 228280909. The next prime is 228281041. The reversal of 228280936 is 639082822.

228280936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 197964900 + 30316036 = 14070^2 + 5506^2 .

It is a super-2 number, since 2×228280936² = 104224371482072192, which contains 22 as substring.

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, 1097401 + ... + 1097608.

Almost surely, 2^228280936 is an apocalyptic number.

228280936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

228280936 is an abundant number, since it is smaller than the sum of its proper divisors (232671164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228280936 is a wasteful number, since it uses less digits than its factorization.

228280936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195028 (or 2195024 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 228280936 is about 15108.9687272163. The cubic root of 228280936 is about 611.1622881463.

The spelling of 228280936 in words is "two hundred twenty-eight million, two hundred eighty thousand, nine hundred thirty-six".