2040312 has 32 divisors (see below), whose sum is σ = 5143680. Its totient is φ = 674400.

The previous prime is 2040293. The next prime is 2040319. The reversal of 2040312 is 2130402.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040319) 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, 3343 + ... + 3905.

It is an arithmetic number, because the mean of its divisors is an integer number (160740).

2^2040312 is an apocalyptic number.

It is an amenable number.

2040312 is an abundant number, since it is smaller than the sum of its proper divisors (3103368).

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

2040312 is a wasteful number, since it uses less digits than its factorization.

2040312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2040312 is about 1428.3949033793. The cubic root of 2040312 is about 126.8329794435.

Adding to 2040312 its reverse (2130402), we get a palindrome (4170714).

The spelling of 2040312 in words is "two million, forty thousand, three hundred twelve".