349290 has 24 divisors (see below), whose sum is σ = 908388. Its totient is φ = 93120.

The previous prime is 349241. The next prime is 349291. The reversal of 349290 is 92943.

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 9 = 591^2 + 3^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (349291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851 + ... + 2030.

2³⁴⁹²⁹⁰ is an apocalyptic number.

349290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

349290 is an abundant number, since it is smaller than the sum of its proper divisors (559098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349290 is a wasteful number, since it uses less digits than its factorization.

349290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3894 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 349290 is about 591.0076141641. The cubic root of 349290 is about 70.4253018988.

The spelling of 349290 in words is "three hundred forty-nine thousand, two hundred ninety".