349747000 has 64 divisors (see below), whose sum is σ = 833976000. Its totient is φ = 137238400.

The previous prime is 349746997. The next prime is 349747009. The reversal of 349747000 is 747943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349747009) 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, 49701 + ... + 56299.

It is an arithmetic number, because the mean of its divisors is an integer number (13030875).

Almost surely, 2^349747000 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 349747000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416988000).

349747000 is an abundant number, since it is smaller than the sum of its proper divisors (484229000).

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

349747000 is a wasteful number, since it uses less digits than its factorization.

349747000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6659 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 349747000 is about 18701.5240020700. The cubic root of 349747000 is about 704.5600259339.

The spelling of 349747000 in words is "three hundred forty-nine million, seven hundred forty-seven thousand".