343404420 has 48 divisors (see below), whose sum is σ = 1018096128. Its totient is φ = 86187520.

The previous prime is 343404377. The next prime is 343404427. The reversal of 343404420 is 24404343.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (343404427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167316 + ... + 169355.

It is an arithmetic number, because the mean of its divisors is an integer number (21210336).

Almost surely, 2^343404420 is an apocalyptic number.

343404420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343404420 is an abundant number, since it is smaller than the sum of its proper divisors (674691708).

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

343404420 is a wasteful number, since it uses less digits than its factorization.

343404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336700 (or 336698 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 343404420 is about 18531.1742747188. The cubic root of 343404420 is about 700.2750075904.

Adding to 343404420 its reverse (24404343), we get a palindrome (367808763).

The spelling of 343404420 in words is "three hundred forty-three million, four hundred four thousand, four hundred twenty".