3457684520 has 16 divisors (see below), whose sum is σ = 7779790260. Its totient is φ = 1383073792.

The previous prime is 3457684459. The next prime is 3457684547. The reversal of 3457684520 is 254867543.

It can be written as a sum of positive squares in 2 ways, for example, as 3399589636 + 58094884 = 58306^2 + 7622^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43221017 + ... + 43221096.

Almost surely, 2^3457684520 is an apocalyptic number.

It is an amenable number.

3457684520 is an abundant number, since it is smaller than the sum of its proper divisors (4322105740).

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

3457684520 is a wasteful number, since it uses less digits than its factorization.

3457684520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86442124 (or 86442120 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The square root of 3457684520 is about 58802.0792149393. The cubic root of 3457684520 is about 1512.1508637481.

The spelling of 3457684520 in words is "three billion, four hundred fifty-seven million, six hundred eighty-four thousand, five hundred twenty".