2851228 has 6 divisors (see below), whose sum is σ = 4989656. Its totient is φ = 1425612.

The previous prime is 2851187. The next prime is 2851231. The reversal of 2851228 is 8221582.

It is a super-2 number, since 2×2851228² = 16259002215968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2851196 and 2851205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356400 + ... + 356407.

2^2851228 is an apocalyptic number.

It is an amenable number.

2851228 is a deficient number, since it is larger than the sum of its proper divisors (2138428).

2851228 is a wasteful number, since it uses less digits than its factorization.

2851228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712811 (or 712809 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 2851228 is about 1688.5579646550. The cubic root of 2851228 is about 141.8003542330.

The spelling of 2851228 in words is "two million, eight hundred fifty-one thousand, two hundred twenty-eight".