343222420 has 24 divisors (see below), whose sum is σ = 723649248. Its totient is φ = 136740000.

The previous prime is 343222409. The next prime is 343222427. The reversal of 343222420 is 24222343.

It is a junction number, because it is equal to n+sod(n) for n = 343222391 and 343222400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343222427) 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, 29166 + ... + 39205.

It is an arithmetic number, because the mean of its divisors is an integer number (30152052).

Almost surely, 2^343222420 is an apocalyptic number.

It is an amenable number.

343222420 is an abundant number, since it is smaller than the sum of its proper divisors (380426828).

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

343222420 is a wasteful number, since it uses less digits than its factorization.

343222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68631 (or 68629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 343222420 is about 18526.2629798888. The cubic root of 343222420 is about 700.1512734292.

Adding to 343222420 its reverse (24222343), we get a palindrome (367444763).

It can be divided in two parts, 3432 and 22420, that added together give a palindrome (25852).

The spelling of 343222420 in words is "three hundred forty-three million, two hundred twenty-two thousand, four hundred twenty".