2012090940 has 72 divisors (see below), whose sum is σ = 6218529408. Its totient is φ = 526431360.

The previous prime is 2012090921. The next prime is 2012090989. The reversal of 2012090940 is 490902102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95916 + ... + 114995.

It is an arithmetic number, because the mean of its divisors is an integer number (86368464).

Almost surely, 2^2012090940 is an apocalyptic number.

2012090940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012090940 is an abundant number, since it is smaller than the sum of its proper divisors (4206438468).

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

2012090940 is a wasteful number, since it uses less digits than its factorization.

2012090940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210979 (or 210974 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 2012090940 is about 44856.3366761041. The cubic root of 2012090940 is about 1262.4548889544.

The spelling of 2012090940 in words is "two billion, twelve million, ninety thousand, nine hundred forty".