343480581 has 10 divisors (see below), whose sum is σ = 513100742. Its totient is φ = 228987000.

The previous prime is 343480531. The next prime is 343480607. The reversal of 343480581 is 185084343.

343480581 is a `hidden beast` number, since 34 + 3 + 48 + 0 + 581 = 666.

It can be written as a sum of positive squares in only one way, i.e., 332150625 + 11329956 = 18225^2 + 3366^2 .

It is not a de Polignac number, because 343480581 - 2⁷ = 343480453 is a prime.

It is a super-2 number, since 2×343480581² = 235957819048195122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343480531) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2120170 + ... + 2120331.

Almost surely, 2^343480581 is an apocalyptic number.

It is an amenable number.

343480581 is a deficient number, since it is larger than the sum of its proper divisors (169620161).

343480581 is an equidigital number, since it uses as much as digits as its factorization.

343480581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240513 (or 4240504 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 343480581 is about 18533.2291034239. The cubic root of 343480581 is about 700.3267732826.

The spelling of 343480581 in words is "three hundred forty-three million, four hundred eighty thousand, five hundred eighty-one".