349761394 has 4 divisors (see below), whose sum is σ = 524642094. Its totient is φ = 174880696.

The previous prime is 349761389. The next prime is 349761403. The reversal of 349761394 is 493167943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493167943 = 17 ⋅29009879.

It can be written as a sum of positive squares in only one way, i.e., 322669369 + 27092025 = 17963^2 + 5205^2 .

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, 87440347 + ... + 87440350.

Almost surely, 2^349761394 is an apocalyptic number.

349761394 is a deficient number, since it is larger than the sum of its proper divisors (174880700).

349761394 is a wasteful number, since it uses less digits than its factorization.

349761394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174880699.

The product of its digits is 489888, while the sum is 46.

The square root of 349761394 is about 18701.9088330577. The cubic root of 349761394 is about 704.5696912996.

The spelling of 349761394 in words is "three hundred forty-nine million, seven hundred sixty-one thousand, three hundred ninety-four".