343838740 has 48 divisors (see below), whose sum is σ = 831196800. Its totient is φ = 117032832.

The previous prime is 343838683. The next prime is 343838749. The reversal of 343838740 is 47838343.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 343838693 and 343838702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343838749) 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, 10626 + ... + 28294.

It is an arithmetic number, because the mean of its divisors is an integer number (17316600).

Almost surely, 2^343838740 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 343838740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415598400).

343838740 is an abundant number, since it is smaller than the sum of its proper divisors (487358060).

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

343838740 is a wasteful number, since it uses less digits than its factorization.

343838740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17824 (or 17822 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 343838740 is about 18542.8892031420. The cubic root of 343838740 is about 700.5701069854.

The spelling of 343838740 in words is "three hundred forty-three million, eight hundred thirty-eight thousand, seven hundred forty".