227991242 has 16 divisors (see below), whose sum is σ = 351195264. Its totient is φ = 110940000.

The previous prime is 227991227. The next prime is 227991263. The reversal of 227991242 is 242199722.

It is a junction number, because it is equal to n+sod(n) for n = 227991196 and 227991205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32117 + ... + 38567.

It is an arithmetic number, because the mean of its divisors is an integer number (21949704).

Almost surely, 2^227991242 is an apocalyptic number.

227991242 is a deficient number, since it is larger than the sum of its proper divisors (123204022).

227991242 is a wasteful number, since it uses less digits than its factorization.

227991242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925.

The product of its digits is 36288, while the sum is 38.

The square root of 227991242 is about 15099.3788613969. The cubic root of 227991242 is about 610.9036521611.

The spelling of 227991242 in words is "two hundred twenty-seven million, nine hundred ninety-one thousand, two hundred forty-two".