349941389 has 12 divisors (see below), whose sum is σ = 424774944. Its totient is φ = 286907544.

The previous prime is 349941359. The next prime is 349941391. The reversal of 349941389 is 983149943.

It is not a de Polignac number, because 349941389 - 2²⁰ = 348892813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349941349) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 154127 + ... + 156380.

It is an arithmetic number, because the mean of its divisors is an integer number (35397912).

Almost surely, 2^349941389 is an apocalyptic number.

It is an amenable number.

349941389 is a deficient number, since it is larger than the sum of its proper divisors (74833555).

349941389 is a wasteful number, since it uses less digits than its factorization.

349941389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310544 (or 310537 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 349941389 is about 18706.7204234200. The cubic root of 349941389 is about 704.6905329889.

The spelling of 349941389 in words is "three hundred forty-nine million, nine hundred forty-one thousand, three hundred eighty-nine".