347221442 has 8 divisors (see below), whose sum is σ = 521158332. Its totient is φ = 173502000.

The previous prime is 347221397. The next prime is 347221451. The reversal of 347221442 is 244122743.

It can be written as a sum of positive squares in 2 ways, for example, as 338155321 + 9066121 = 18389^2 + 3011^2 .

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

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, 50309 + ... + 56792.

Almost surely, 2^347221442 is an apocalyptic number.

347221442 is a deficient number, since it is larger than the sum of its proper divisors (173936890).

347221442 is a wasteful number, since it uses less digits than its factorization.

347221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108724.

The product of its digits is 10752, while the sum is 29.

The square root of 347221442 is about 18633.8788769274. The cubic root of 347221442 is about 702.8600279658.

The spelling of 347221442 in words is "three hundred forty-seven million, two hundred twenty-one thousand, four hundred forty-two".