343004640 has 192 divisors, whose sum is σ = 1188794880. Its totient is φ = 82442240.

The previous prime is 343004581. The next prime is 343004687. The reversal of 343004640 is 46400343.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 343004640.

It is a congruent number.

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, 881566 + ... + 881954.

It is an arithmetic number, because the mean of its divisors is an integer number (6191640).

Almost surely, 2^343004640 is an apocalyptic number.

343004640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343004640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594397440).

343004640 is an abundant number, since it is smaller than the sum of its proper divisors (845790240).

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

343004640 is a wasteful number, since it uses less digits than its factorization.

343004640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 343004640 is about 18520.3844452538. The cubic root of 343004640 is about 700.0031564484.

Adding to 343004640 its reverse (46400343), we get a palindrome (389404983).

The spelling of 343004640 in words is "three hundred forty-three million, four thousand, six hundred forty".