349071842 has 16 divisors (see below), whose sum is σ = 617713152. Its totient is φ = 144776160.

The previous prime is 349071817. The next prime is 349071847. The reversal of 349071842 is 248170943.

It is a junction number, because it is equal to n+sod(n) for n = 349071796 and 349071805.

It is not an unprimeable number, because it can be changed into a prime (349071847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401723 + ... + 402590.

It is an arithmetic number, because the mean of its divisors is an integer number (38607072).

Almost surely, 2^349071842 is an apocalyptic number.

349071842 is a deficient number, since it is larger than the sum of its proper divisors (268641310).

349071842 is a wasteful number, since it uses less digits than its factorization.

349071842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804353.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 349071842 is about 18683.4644003729. The cubic root of 349071842 is about 704.1063687095.

The spelling of 349071842 in words is "three hundred forty-nine million, seventy-one thousand, eight hundred forty-two".