3240560 has 20 divisors (see below), whose sum is σ = 7534488. Its totient is φ = 1296192.

The previous prime is 3240553. The next prime is 3240577. The reversal of 3240560 is 650423.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3240560² = 21002458227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent 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, 20174 + ... + 20333.

Almost surely, 2^3240560 is an apocalyptic number.

It is an amenable number.

3240560 is an abundant number, since it is smaller than the sum of its proper divisors (4293928).

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

3240560 is a wasteful number, since it uses less digits than its factorization.

3240560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40520 (or 40514 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3240560 is about 1800.1555488346. The cubic root of 3240560 is about 147.9812491463.

Adding to 3240560 its reverse (650423), we get a palindrome (3890983).

The spelling of 3240560 in words is "three million, two hundred forty thousand, five hundred sixty".