349019860 has 48 divisors (see below), whose sum is σ = 886927104. Its totient is φ = 112624128.

The previous prime is 349019851. The next prime is 349019861. The reversal of 349019860 is 68910943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349019861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70944 + ... + 75703.

It is an arithmetic number, because the mean of its divisors is an integer number (18477648).

Almost surely, 2^349019860 is an apocalyptic number.

It is an amenable number.

349019860 is an abundant number, since it is smaller than the sum of its proper divisors (537907244).

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

349019860 is a wasteful number, since it uses less digits than its factorization.

349019860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146680 (or 146678 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 349019860 is about 18682.0732254212. The cubic root of 349019860 is about 704.0714163303.

The spelling of 349019860 in words is "three hundred forty-nine million, nineteen thousand, eight hundred sixty".