343600420 has 24 divisors (see below), whose sum is σ = 721942200. Its totient is φ = 137367552.

The previous prime is 343600403. The next prime is 343600423. The reversal of 343600420 is 24006343.

It can be written as a sum of positive squares in 4 ways, for example, as 38539264 + 305061156 = 6208^2 + 17466^2 .

It is a super-2 number, since 2×343600420² = 236122497248352800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 343600391 and 343600400.

It is not an unprimeable number, because it can be changed into a prime (343600423) 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, 50586 + ... + 56974.

It is an arithmetic number, because the mean of its divisors is an integer number (30080925).

Almost surely, 2^343600420 is an apocalyptic number.

It is an amenable number.

343600420 is an abundant number, since it is smaller than the sum of its proper divisors (378341780).

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

343600420 is a wasteful number, since it uses less digits than its factorization.

343600420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087 (or 9085 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 343600420 is about 18536.4619061999. The cubic root of 343600420 is about 700.4082108817.

Adding to 343600420 its reverse (24006343), we get a palindrome (367606763).

The spelling of 343600420 in words is "three hundred forty-three million, six hundred thousand, four hundred twenty".