349523986 has 16 divisors (see below), whose sum is σ = 602775936. Its totient is φ = 148898016.

The previous prime is 349523971. The next prime is 349524013. The reversal of 349523986 is 689325943.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72411 + ... + 77086.

It is an arithmetic number, because the mean of its divisors is an integer number (37673496).

Almost surely, 2^349523986 is an apocalyptic number.

349523986 is a deficient number, since it is larger than the sum of its proper divisors (253251950).

349523986 is a wasteful number, since it uses less digits than its factorization.

349523986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149673.

The product of its digits is 1399680, while the sum is 49.

The square root of 349523986 is about 18695.5605960346. The cubic root of 349523986 is about 704.4102413197.

The spelling of 349523986 in words is "three hundred forty-nine million, five hundred twenty-three thousand, nine hundred eighty-six".