349724260 has 48 divisors (see below), whose sum is σ = 791965440. Its totient is φ = 129288960.

The previous prime is 349724213. The next prime is 349724261. The reversal of 349724260 is 62427943.

It is not an unprimeable number, because it can be changed into a prime (349724261) 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, 4357 + ... + 26803.

It is an arithmetic number, because the mean of its divisors is an integer number (16499280).

Almost surely, 2^349724260 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 349724260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395982720).

349724260 is an abundant number, since it is smaller than the sum of its proper divisors (442241180).

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

349724260 is a wasteful number, since it uses less digits than its factorization.

349724260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22516 (or 22514 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 349724260 is about 18700.9160203451. The cubic root of 349724260 is about 704.5447558080.

The spelling of 349724260 in words is "three hundred forty-nine million, seven hundred twenty-four thousand, two hundred sixty".