2041988436 has 72 divisors (see below), whose sum is σ = 5300823528. Its totient is φ = 662400000.

The previous prime is 2041988411. The next prime is 2041988437. The reversal of 2041988436 is 6348891402.

It is a happy number.

2041988436 is a `hidden beast` number, since 20 + 4 + 198 + 8 + 436 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2924100 + 2039064336 = 1710^2 + 45156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2041988391 and 2041988400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041988437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 678936 + ... + 681936.

It is an arithmetic number, because the mean of its divisors is an integer number (73622549).

Almost surely, 2^2041988436 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 2041988436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2650411764).

2041988436 is an abundant number, since it is smaller than the sum of its proper divisors (3258835092).

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

2041988436 is a wasteful number, since it uses less digits than its factorization.

2041988436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2041988436 is about 45188.3661576738. The cubic root of 2041988436 is about 1268.6770765564.

The spelling of 2041988436 in words is "two billion, forty-one million, nine hundred eighty-eight thousand, four hundred thirty-six".