227840812 has 12 divisors (see below), whose sum is σ = 399699160. Its totient is φ = 113641056.

The previous prime is 227840807. The next prime is 227840867. The reversal of 227840812 is 218048722.

It is a super-2 number, since 2×227840812² = 103822871225638688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67998 + ... + 71269.

Almost surely, 2^227840812 is an apocalyptic number.

It is an amenable number.

227840812 is a deficient number, since it is larger than the sum of its proper divisors (171858348).

227840812 is a wasteful number, since it uses less digits than its factorization.

227840812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139680 (or 139678 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 227840812 is about 15094.3967087128. The cubic root of 227840812 is about 610.7692632921.

The spelling of 227840812 in words is "two hundred twenty-seven million, eight hundred forty thousand, eight hundred twelve".