806428228 has 12 divisors (see below), whose sum is σ = 1412326972. Its totient is φ = 402906240.

The previous prime is 806428219. The next prime is 806428247. The reversal of 806428228 is 822824608.

It can be written as a sum of positive squares in 2 ways, for example, as 764411904 + 42016324 = 27648^2 + 6482^2 .

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, 71025 + ... + 81592.

Almost surely, 2^806428228 is an apocalyptic number.

It is an amenable number.

806428228 is a deficient number, since it is larger than the sum of its proper divisors (605898744).

806428228 is a wasteful number, since it uses less digits than its factorization.

806428228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153942 (or 153940 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 806428228 is about 28397.6799756600. The cubic root of 806428228 is about 930.7975691708.

The spelling of 806428228 in words is "eight hundred six million, four hundred twenty-eight thousand, two hundred twenty-eight".