2031320 has 32 divisors (see below), whose sum is σ = 4680720. Its totient is φ = 792960.

The previous prime is 2031319. The next prime is 2031353. The reversal of 2031320 is 231302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130 + ... + 2310.

2^2031320 is an apocalyptic number.

2031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2340360).

2031320 is an abundant number, since it is smaller than the sum of its proper divisors (2649400).

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

2031320 is a wasteful number, since it uses less digits than its factorization.

2031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 2031320 is about 1425.2438387869. The cubic root of 2031320 is about 126.6463802538.

Adding to 2031320 its reverse (231302), we get a palindrome (2262622).

The spelling of 2031320 in words is "two million, thirty-one thousand, three hundred twenty".