349431852 has 96 divisors (see below), whose sum is σ = 1029611520. Its totient is φ = 89593920.

The previous prime is 349431839. The next prime is 349431871. The reversal of 349431852 is 258134943.

It is a self number, because there is not a number n which added to its sum of digits gives 349431852.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70603 + ... + 75389.

It is an arithmetic number, because the mean of its divisors is an integer number (10725120).

Almost surely, 2^349431852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349431852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514805760).

349431852 is an abundant number, since it is smaller than the sum of its proper divisors (680179668).

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

349431852 is a wasteful number, since it uses less digits than its factorization.

349431852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4891 (or 4889 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 349431852 is about 18693.0963727254. The cubic root of 349431852 is about 704.3483420518.

The spelling of 349431852 in words is "three hundred forty-nine million, four hundred thirty-one thousand, eight hundred fifty-two".