349188770 has 16 divisors (see below), whose sum is σ = 718331328. Its totient is φ = 119721840.

The previous prime is 349188703. The next prime is 349188773. The reversal of 349188770 is 77881943.

349188770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×349188770² = 243865594188225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349188773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2494136 + ... + 2494275.

It is an arithmetic number, because the mean of its divisors is an integer number (44895708).

Almost surely, 2^349188770 is an apocalyptic number.

349188770 is an abundant number, since it is smaller than the sum of its proper divisors (369142558).

349188770 is a wasteful number, since it uses less digits than its factorization.

349188770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988425.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 349188770 is about 18686.5933224866. The cubic root of 349188770 is about 704.1849777031.

The spelling of 349188770 in words is "three hundred forty-nine million, one hundred eighty-eight thousand, seven hundred seventy".