349059280 has 40 divisors (see below), whose sum is σ = 823688352. Its totient is φ = 137537664.

The previous prime is 349059257. The next prime is 349059313. The reversal of 349059280 is 82950943.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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, 27202 + ... + 37921.

Almost surely, 2^349059280 is an apocalyptic number.

It is an amenable number.

349059280 is an abundant number, since it is smaller than the sum of its proper divisors (474629072).

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

349059280 is a wasteful number, since it uses less digits than its factorization.

349059280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65203 (or 65197 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 349059280 is about 18683.1282177263. The cubic root of 349059280 is about 704.0979224154.

The spelling of 349059280 in words is "three hundred forty-nine million, fifty-nine thousand, two hundred eighty".