349938980 has 24 divisors (see below), whose sum is σ = 738610488. Its totient is φ = 139263488.

The previous prime is 349938961. The next prime is 349939013. The reversal of 349938980 is 89839943.

It can be written as a sum of positive squares in 4 ways, for example, as 113763556 + 236175424 = 10666^2 + 15368^2 .

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, 40469 + ... + 48348.

It is an arithmetic number, because the mean of its divisors is an integer number (30775437).

Almost surely, 2^349938980 is an apocalyptic number.

It is an amenable number.

349938980 is an abundant number, since it is smaller than the sum of its proper divisors (388671508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349938980 is a wasteful number, since it uses less digits than its factorization.

349938980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89023 (or 89021 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 349938980 is about 18706.6560346846. The cubic root of 349938980 is about 704.6889159530.

The spelling of 349938980 in words is "three hundred forty-nine million, nine hundred thirty-eight thousand, nine hundred eighty".