343395920 has 120 divisors (see below), whose sum is σ = 983568744. Its totient is φ = 110788608.

The previous prime is 343395919. The next prime is 343395961. The reversal of 343395920 is 29593343.

It can be written as a sum of positive squares in 4 ways, for example, as 89567296 + 253828624 = 9464^2 + 15932^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64064 + ... + 69216.

Almost surely, 2^343395920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343395920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491784372).

343395920 is an abundant number, since it is smaller than the sum of its proper divisors (640172824).

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

343395920 is a wasteful number, since it uses less digits than its factorization.

343395920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 343395920 is about 18530.9449300353. The cubic root of 343395920 is about 700.2692297705.

The spelling of 343395920 in words is "three hundred forty-three million, three hundred ninety-five thousand, nine hundred twenty".