2190091050 has 576 divisors, whose sum is σ = 7762360320. Its totient is φ = 431101440.

The previous prime is 2190091039. The next prime is 2190091067. The reversal of 2190091050 is 501900912.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 50932329 + ... + 50932371.

It is an arithmetic number, because the mean of its divisors is an integer number (13476320).

Almost surely, 2^2190091050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2190091050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881180160).

2190091050 is an abundant number, since it is smaller than the sum of its proper divisors (5572269270).

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

2190091050 is a wasteful number, since it uses less digits than its factorization.

2190091050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2190091050 is about 46798.4086267899. The cubic root of 2190091050 is about 1298.6358570183.

Adding to 2190091050 its reverse (501900912), we get a palindrome (2691991962).

The spelling of 2190091050 in words is "two billion, one hundred ninety million, ninety-one thousand, fifty".