349220971426 has 4 divisors (see below), whose sum is σ = 523831457142. Its totient is φ = 174610485712.

The previous prime is 349220971417. The next prime is 349220971447. The reversal of 349220971426 is 624179022943.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 348448187025 + 772784401 = 590295^2 + 27799^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 349220971426.

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 as a sum of consecutive naturals, namely, 87305242855 + ... + 87305242858.

Almost surely, 2^349220971426 is an apocalyptic number.

349220971426 is a deficient number, since it is larger than the sum of its proper divisors (174610485716).

349220971426 is a wasteful number, since it uses less digits than its factorization.

349220971426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174610485715.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 349220971426 in words is "three hundred forty-nine billion, two hundred twenty million, nine hundred seventy-one thousand, four hundred twenty-six".