3231320 has 16 divisors (see below), whose sum is σ = 7270560. Its totient is φ = 1292512.

The previous prime is 3231313. The next prime is 3231329. The reversal of 3231320 is 231323.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3231295 and 3231304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40352 + ... + 40431.

It is an arithmetic number, because the mean of its divisors is an integer number (454410).

Almost surely, 2^3231320 is an apocalyptic number.

It is an amenable number.

3231320 is an abundant number, since it is smaller than the sum of its proper divisors (4039240).

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

3231320 is a wasteful number, since it uses less digits than its factorization.

3231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80794 (or 80790 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 3231320 is about 1797.5872718731. The cubic root of 3231320 is about 147.8404660302.

Adding to 3231320 its reverse (231323), we get a palindrome (3462643).

The spelling of 3231320 in words is "three million, two hundred thirty-one thousand, three hundred twenty".