2002091090 has 64 divisors (see below), whose sum is σ = 3813239808. Its totient is φ = 755827200.

The previous prime is 2002091083. The next prime is 2002091093. The reversal of 2002091090 is 901902002.

It is not an unprimeable number, because it can be changed into a prime (2002091093) 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, 4110827 + ... + 4111313.

It is an arithmetic number, because the mean of its divisors is an integer number (59581872).

Almost surely, 2^2002091090 is an apocalyptic number.

2002091090 is a deficient number, since it is larger than the sum of its proper divisors (1811148718).

2002091090 is a wasteful number, since it uses less digits than its factorization.

2002091090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2002091090 is about 44744.7325391492. The cubic root of 2002091090 is about 1260.3599983350.

Adding to 2002091090 its reverse (901902002), we get a palindrome (2903993092).

The spelling of 2002091090 in words is "two billion, two million, ninety-one thousand, ninety".