3201040 has 20 divisors (see below), whose sum is σ = 7442604. Its totient is φ = 1280384.

The previous prime is 3201007. The next prime is 3201043. The reversal of 3201040 is 401023.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 1937664 = 1124^2 + 1392^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (3201043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19927 + ... + 20086.

Almost surely, 2^3201040 is an apocalyptic number.

It is an amenable number.

3201040 is an abundant number, since it is smaller than the sum of its proper divisors (4241564).

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

3201040 is a wasteful number, since it uses less digits than its factorization.

3201040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40026 (or 40020 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 3201040 is about 1789.1450472223. The cubic root of 3201040 is about 147.3772223530.

Adding to 3201040 its reverse (401023), we get a palindrome (3602063).

The spelling of 3201040 in words is "three million, two hundred one thousand, forty".