349349590 has 16 divisors (see below), whose sum is σ = 642209472. Its totient is φ = 136766464.

The previous prime is 349349551. The next prime is 349349593. The reversal of 349349590 is 95943943.

It is a self number, because there is not a number n which added to its sum of digits gives 349349590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349349593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371179 + ... + 372118.

It is an arithmetic number, because the mean of its divisors is an integer number (40138092).

Almost surely, 2^349349590 is an apocalyptic number.

349349590 is a deficient number, since it is larger than the sum of its proper divisors (292859882).

349349590 is a wasteful number, since it uses less digits than its factorization.

349349590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743351.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 349349590 is about 18690.8959121814. The cubic root of 349349590 is about 704.2930659893.

The spelling of 349349590 in words is "three hundred forty-nine million, three hundred forty-nine thousand, five hundred ninety".