3231040 has 56 divisors (see below), whose sum is σ = 8046720. Its totient is φ = 1233408.

The previous prime is 3231029. The next prime is 3231049. The reversal of 3231040 is 401323.

It is a self number, because there is not a number n which added to its sum of digits gives 3231040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7141 + ... + 7579.

Almost surely, 2^3231040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4023360).

3231040 is an abundant number, since it is smaller than the sum of its proper divisors (4815680).

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

3231040 is a wasteful number, since it uses less digits than its factorization.

3231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3231040 is about 1797.5093880144. The cubic root of 3231040 is about 147.8361956880.

Adding to 3231040 its reverse (401323), we get a palindrome (3632363).

The spelling of 3231040 in words is "three million, two hundred thirty-one thousand, forty".