2045987290 has 16 divisors (see below), whose sum is σ = 3801576960. Its totient is φ = 791994960.

The previous prime is 2045987227. The next prime is 2045987291. The reversal of 2045987290 is 927895402.

It is a self number, because there is not a number n which added to its sum of digits gives 2045987290.

It is not an unprimeable number, because it can be changed into a prime (2045987291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299670 + ... + 3300289.

It is an arithmetic number, because the mean of its divisors is an integer number (237598560).

Almost surely, 2^2045987290 is an apocalyptic number.

2045987290 is a deficient number, since it is larger than the sum of its proper divisors (1755589670).

2045987290 is a wasteful number, since it uses less digits than its factorization.

2045987290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599997.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2045987290 is about 45232.5910157709. The cubic root of 2045987290 is about 1269.5046924620.

The spelling of 2045987290 in words is "two billion, forty-five million, nine hundred eighty-seven thousand, two hundred ninety".