349185886394 has 8 divisors (see below), whose sum is σ = 523784207700. Its totient is φ = 174591150496.

The previous prime is 349185886367. The next prime is 349185886429. The reversal of 349185886394 is 493688581943.

It can be written as a sum of positive squares in 2 ways, for example, as 349003285225 + 182601169 = 590765^2 + 13513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637979 + ... + 1051374.

Almost surely, 2^349185886394 is an apocalyptic number.

349185886394 is a deficient number, since it is larger than the sum of its proper divisors (174598321306).

349185886394 is a wasteful number, since it uses less digits than its factorization.

349185886394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792704.

The product of its digits is 179159040, while the sum is 68.

The spelling of 349185886394 in words is "three hundred forty-nine billion, one hundred eighty-five million, eight hundred eighty-six thousand, three hundred ninety-four".