297128222 has 8 divisors (see below), whose sum is σ = 446346936. Its totient is φ = 148345912.

The previous prime is 297128197. The next prime is 297128233. The reversal of 297128222 is 222821792.

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

It is a congruent number.

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, 107393 + ... + 110124.

It is an arithmetic number, because the mean of its divisors is an integer number (55793367).

Almost surely, 2^297128222 is an apocalyptic number.

297128222 is a deficient number, since it is larger than the sum of its proper divisors (149218714).

297128222 is a wasteful number, since it uses less digits than its factorization.

297128222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218202.

The product of its digits is 16128, while the sum is 35.

The square root of 297128222 is about 17237.4076357206. The cubic root of 297128222 is about 667.2900278939.

The spelling of 297128222 in words is "two hundred ninety-seven million, one hundred twenty-eight thousand, two hundred twenty-two".