349309903943 has 32 divisors (see below), whose sum is σ = 469063483392. Its totient is φ = 251219750400.

The previous prime is 349309903939. The next prime is 349309903961.

It is a happy number.

349309903943 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 349309903943 - 2² = 349309903939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349309903903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10103855 + ... + 10138367.

It is an arithmetic number, because the mean of its divisors is an integer number (14658233856).

Almost surely, 2^349309903943 is an apocalyptic number.

349309903943 is a deficient number, since it is larger than the sum of its proper divisors (119753579449).

349309903943 is a wasteful number, since it uses less digits than its factorization.

349309903943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44655.

The product of its (nonzero) digits is 8503056, while the sum is 56.

The spelling of 349309903943 in words is "three hundred forty-nine billion, three hundred nine million, nine hundred three thousand, nine hundred forty-three".