349185770 has 16 divisors (see below), whose sum is σ = 655862400. Its totient is φ = 133601424.

The previous prime is 349185769. The next prime is 349185773. The reversal of 349185770 is 77581943.

It is not an unprimeable number, because it can be changed into a prime (349185773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758870 + ... + 759329.

It is an arithmetic number, because the mean of its divisors is an integer number (40991400).

Almost surely, 2^349185770 is an apocalyptic number.

349185770 is a deficient number, since it is larger than the sum of its proper divisors (306676630).

349185770 is a wasteful number, since it uses less digits than its factorization.

349185770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518229.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 349185770 is about 18686.5130508610. The cubic root of 349185770 is about 704.1829610661.

The spelling of 349185770 in words is "three hundred forty-nine million, one hundred eighty-five thousand, seven hundred seventy".