349730770 has 16 divisors (see below), whose sum is σ = 629748288. Its totient is φ = 139840560.

The previous prime is 349730761. The next prime is 349730789. The reversal of 349730770 is 77037943.

It is a happy number.

It is a super-2 number, since 2×349730770² = 244623222969585800, which contains 22 as substring.

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, 33925 + ... + 43015.

It is an arithmetic number, because the mean of its divisors is an integer number (39359268).

Almost surely, 2^349730770 is an apocalyptic number.

349730770 is a deficient number, since it is larger than the sum of its proper divisors (280017518).

349730770 is a wasteful number, since it uses less digits than its factorization.

349730770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12945.

The product of its (nonzero) digits is 111132, while the sum is 40.

The square root of 349730770 is about 18701.0900751801. The cubic root of 349730770 is about 704.5491274024.

The spelling of 349730770 in words is "three hundred forty-nine million, seven hundred thirty thousand, seven hundred seventy".