343442020 has 24 divisors (see below), whose sum is σ = 726075000. Its totient is φ = 136453632.

The previous prime is 343441991. The next prime is 343442023. The reversal of 343442020 is 20244343.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 343286784 = 394^2 + 18528^2 .

It is a super-2 number, since 2×343442020² = 235904842203360800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343441982 and 343442000.

It is not an unprimeable number, because it can be changed into a prime (343442023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54645 + ... + 60604.

It is an arithmetic number, because the mean of its divisors is an integer number (30253125).

Almost surely, 2^343442020 is an apocalyptic number.

It is an amenable number.

343442020 is an abundant number, since it is smaller than the sum of its proper divisors (382632980).

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

343442020 is a wasteful number, since it uses less digits than its factorization.

343442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115407 (or 115405 counting only the distinct ones).

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

The square root of 343442020 is about 18532.1887536254. The cubic root of 343442020 is about 700.3005648031.

Adding to 343442020 its reverse (20244343), we get a palindrome (363686363).

It can be divided in two parts, 3434 and 42020, that added together give a palindrome (45454).

The spelling of 343442020 in words is "three hundred forty-three million, four hundred forty-two thousand, twenty".