349448860 has 24 divisors (see below), whose sum is σ = 735305760. Its totient is φ = 139500864.

The previous prime is 349448857. The next prime is 349448903. The reversal of 349448860 is 68844943.

It is a happy number.

It is a super-2 number, since 2×349448860² = 244229011510599200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 349448860.

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, 6984 + ... + 27343.

It is an arithmetic number, because the mean of its divisors is an integer number (30637740).

Almost surely, 2^349448860 is an apocalyptic number.

It is an amenable number.

349448860 is an abundant number, since it is smaller than the sum of its proper divisors (385856900).

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

349448860 is a wasteful number, since it uses less digits than its factorization.

349448860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34845 (or 34843 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 349448860 is about 18693.5512944973. The cubic root of 349448860 is about 704.3597695182.

The spelling of 349448860 in words is "three hundred forty-nine million, four hundred forty-eight thousand, eight hundred sixty".