3456520 has 16 divisors (see below), whose sum is σ = 7777260. Its totient is φ = 1382592.

The previous prime is 3456517. The next prime is 3456533. The reversal of 3456520 is 256543.

3456520 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 3452164 + 4356 = 1858^2 + 66^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43167 + ... + 43246.

Almost surely, 2^3456520 is an apocalyptic number.

It is an amenable number.

3456520 is an abundant number, since it is smaller than the sum of its proper divisors (4320740).

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

3456520 is a wasteful number, since it uses less digits than its factorization.

3456520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86424 (or 86420 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 3456520 is about 1859.1718586511. The cubic root of 3456520 is about 151.1981084653.

The spelling of 3456520 in words is "three million, four hundred fifty-six thousand, five hundred twenty".