349909682 has 4 divisors (see below), whose sum is σ = 524864526. Its totient is φ = 174954840.

The previous prime is 349909667. The next prime is 349909687. The reversal of 349909682 is 286909943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 185531641 + 164378041 = 13621^2 + 12821^2 .

It is a super-2 number, since 2×349909682² = 244873571114682248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 349909682.

It is not an unprimeable number, because it can be changed into a prime (349909687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87477419 + ... + 87477422.

Almost surely, 2^349909682 is an apocalyptic number.

349909682 is a deficient number, since it is larger than the sum of its proper divisors (174954844).

349909682 is a wasteful number, since it uses less digits than its factorization.

349909682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174954843.

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

The square root of 349909682 is about 18705.8729280405. The cubic root of 349909682 is about 704.6692491413.

The spelling of 349909682 in words is "three hundred forty-nine million, nine hundred nine thousand, six hundred eighty-two".