349943730445 has 4 divisors (see below), whose sum is σ = 419932476540. Its totient is φ = 279954984352.

The previous prime is 349943730421. The next prime is 349943730467. The reversal of 349943730445 is 544037349943.

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

It can be written as a sum of positive squares in 2 ways, for example, as 196168382281 + 153775348164 = 442909^2 + 392142^2 .

It is a cyclic number.

It is not a de Polignac number, because 349943730445 - 2²⁹ = 349406859533 is a prime.

It is a super-2 number, since 2×349943730445² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 34994373040 + ... + 34994373049.

It is an arithmetic number, because the mean of its divisors is an integer number (104983119135).

Almost surely, 2^349943730445 is an apocalyptic number.

It is an amenable number.

349943730445 is a deficient number, since it is larger than the sum of its proper divisors (69988746095).

349943730445 is an equidigital number, since it uses as much as digits as its factorization.

349943730445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69988746094.

The product of its (nonzero) digits is 19595520, while the sum is 55.

The spelling of 349943730445 in words is "three hundred forty-nine billion, nine hundred forty-three million, seven hundred thirty thousand, four hundred forty-five".