349320770 has 16 divisors (see below), whose sum is σ = 639086328. Its totient is φ = 137437440.

The previous prime is 349320733. The next prime is 349320793. The reversal of 349320770 is 77023943.

It can be written as a sum of positive squares in 4 ways, for example, as 207734569 + 141586201 = 14413^2 + 11899^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 349320770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285719 + ... + 286938.

Almost surely, 2^349320770 is an apocalyptic number.

349320770 is a deficient number, since it is larger than the sum of its proper divisors (289765558).

349320770 is a wasteful number, since it uses less digits than its factorization.

349320770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572725.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 349320770 is about 18690.1249327018. The cubic root of 349320770 is about 704.2736982987.

The spelling of 349320770 in words is "three hundred forty-nine million, three hundred twenty thousand, seven hundred seventy".