3081228 has 24 divisors (see below), whose sum is σ = 7218288. Its totient is φ = 1022976.

The previous prime is 3081223. The next prime is 3081259. The reversal of 3081228 is 8221803.

It is a junction number, because it is equal to n+sod(n) for n = 3081198 and 3081207.

It is not an unprimeable number, because it can be changed into a prime (3081223) 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, 4900 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (300762).

Almost surely, 2^3081228 is an apocalyptic number.

It is an amenable number.

3081228 is an abundant number, since it is smaller than the sum of its proper divisors (4137060).

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

3081228 is a wasteful number, since it uses less digits than its factorization.

3081228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3081228 is about 1755.3427015828. The cubic root of 3081228 is about 145.5150608517.

The spelling of 3081228 in words is "three million, eighty-one thousand, two hundred twenty-eight".