305057222 has 8 divisors (see below), whose sum is σ = 468227496. Its totient is φ = 148981392.

The previous prime is 305057191. The next prime is 305057227. The reversal of 305057222 is 222750503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 305057191 and 305057200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305057227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773503 + ... + 1773674.

It is an arithmetic number, because the mean of its divisors is an integer number (58528437).

Almost surely, 2^305057222 is an apocalyptic number.

305057222 is a deficient number, since it is larger than the sum of its proper divisors (163170274).

305057222 is a wasteful number, since it uses less digits than its factorization.

305057222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547222.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 305057222 is about 17465.8873808347. The cubic root of 305057222 is about 673.1736431964.

The spelling of 305057222 in words is "three hundred five million, fifty-seven thousand, two hundred twenty-two".