2031304 has 32 divisors (see below), whose sum is σ = 4263840. Its totient is φ = 899200.

The previous prime is 2031301. The next prime is 2031319. The reversal of 2031304 is 4031302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031301) 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, 3327 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (133245).

2^2031304 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 2031304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131920).

2031304 is an abundant number, since it is smaller than the sum of its proper divisors (2232536).

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

2031304 is a wasteful number, since it uses less digits than its factorization.

2031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 617 counting only the distinct ones).

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

The square root of 2031304 is about 1425.2382257012. The cubic root of 2031304 is about 126.6460477365.

Adding to 2031304 its reverse (4031302), we get a palindrome (6062606).

The spelling of 2031304 in words is "two million, thirty-one thousand, three hundred four".