343424420 has 24 divisors (see below), whose sum is σ = 723006648. Its totient is φ = 137024000.

The previous prime is 343424377. The next prime is 343424423. The reversal of 343424420 is 24424343.

It can be written as a sum of positive squares in 4 ways, for example, as 46758244 + 296666176 = 6838^2 + 17224^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 343424420.

It is not an unprimeable number, because it can be changed into a prime (343424423) 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, 13391 + ... + 29430.

It is an arithmetic number, because the mean of its divisors is an integer number (30125277).

Almost surely, 2^343424420 is an apocalyptic number.

It is an amenable number.

343424420 is an abundant number, since it is smaller than the sum of its proper divisors (379582228).

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

343424420 is a wasteful number, since it uses less digits than its factorization.

343424420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43231 (or 43229 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 343424420 is about 18531.7138980721. The cubic root of 343424420 is about 700.2886020847.

Adding to 343424420 its reverse (24424343), we get a palindrome (367848763).

The spelling of 343424420 in words is "three hundred forty-three million, four hundred twenty-four thousand, four hundred twenty".