2011442790 has 64 divisors (see below), whose sum is σ = 5807485440. Its totient is φ = 435559680.

The previous prime is 2011442773. The next prime is 2011442791. The reversal of 2011442790 is 972441102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011442791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248071 + ... + 256050.

It is an arithmetic number, because the mean of its divisors is an integer number (90741960).

Almost surely, 2^2011442790 is an apocalyptic number.

2011442790 is an abundant number, since it is smaller than the sum of its proper divisors (3796042650).

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

2011442790 is a wasteful number, since it uses less digits than its factorization.

2011442790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504157.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2011442790 is about 44849.1113624339. Note that the first 3 decimals coincide. The cubic root of 2011442790 is about 1262.3193172137.

Adding to 2011442790 its reverse (972441102), we get a palindrome (2983883892).

The spelling of 2011442790 in words is "two billion, eleven million, four hundred forty-two thousand, seven hundred ninety".