349343290 has 8 divisors (see below), whose sum is σ = 628817940. Its totient is φ = 139737312.

The previous prime is 349343261. The next prime is 349343327. The reversal of 349343290 is 92343943.

It can be written as a sum of positive squares in 2 ways, for example, as 293676769 + 55666521 = 17137^2 + 7461^2 .

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, 17467155 + ... + 17467174.

Almost surely, 2^349343290 is an apocalyptic number.

349343290 is a deficient number, since it is larger than the sum of its proper divisors (279474650).

349343290 is a wasteful number, since it uses less digits than its factorization.

349343290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34934336.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 349343290 is about 18690.7273801744. The cubic root of 349343290 is about 704.2888323380.

The spelling of 349343290 in words is "three hundred forty-nine million, three hundred forty-three thousand, two hundred ninety".