343503424 has 56 divisors (see below), whose sum is σ = 751124736. Its totient is φ = 154560000.

The previous prime is 343503403. The next prime is 343503427. The reversal of 343503424 is 424305343.

It is a junction number, because it is equal to n+sod(n) for n = 343503392 and 343503401.

It is not an unprimeable number, because it can be changed into a prime (343503427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68689 + ... + 73519.

Almost surely, 2^343503424 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 343503424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375562368).

343503424 is an abundant number, since it is smaller than the sum of its proper divisors (407621312).

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

343503424 is a wasteful number, since it uses less digits than its factorization.

343503424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4955 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 343503424 is about 18533.8453646295. The cubic root of 343503424 is about 700.3422978962.

Adding to 343503424 its reverse (424305343), we get a palindrome (767808767).

The spelling of 343503424 in words is "three hundred forty-three million, five hundred three thousand, four hundred twenty-four".