349348290 has 32 divisors (see below), whose sum is σ = 858888576. Its totient is φ = 90887040.

The previous prime is 349348271. The next prime is 349348291. The reversal of 349348290 is 92843943.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (349348291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140782 + ... + 143241.

It is an arithmetic number, because the mean of its divisors is an integer number (26840268).

Almost surely, 2^349348290 is an apocalyptic number.

349348290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

349348290 is an abundant number, since it is smaller than the sum of its proper divisors (509540286).

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

349348290 is a wasteful number, since it uses less digits than its factorization.

349348290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284074.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 349348290 is about 18690.8611358600. The cubic root of 349348290 is about 704.2921923829.

The spelling of 349348290 in words is "three hundred forty-nine million, three hundred forty-eight thousand, two hundred ninety".