343585420 has 24 divisors (see below), whose sum is σ = 722436624. Its totient is φ = 137261376.

The previous prime is 343585391. The next prime is 343585423. The reversal of 343585420 is 24585343.

It is not an unprimeable number, because it can be changed into a prime (343585423) 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, 6154 + ... + 26926.

It is an arithmetic number, because the mean of its divisors is an integer number (30101526).

Almost surely, 2^343585420 is an apocalyptic number.

It is an amenable number.

343585420 is an abundant number, since it is smaller than the sum of its proper divisors (378851204).

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

343585420 is a wasteful number, since it uses less digits than its factorization.

343585420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21609 (or 21607 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 343585420 is about 18536.0572938260. The cubic root of 343585420 is about 700.3980185426.

The spelling of 343585420 in words is "three hundred forty-three million, five hundred eighty-five thousand, four hundred twenty".