2045119730 has 32 divisors (see below), whose sum is σ = 3811901040. Its totient is φ = 789062400.

The previous prime is 2045119723. The next prime is 2045119787. The reversal of 2045119730 is 379115402.

It is a Cunningham number, because it is equal to 45223²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1544568601 + 500551129 = 39301^2 + 22373^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355880 + ... + 361580.

Almost surely, 2^2045119730 is an apocalyptic number.

2045119730 is a deficient number, since it is larger than the sum of its proper divisors (1766781310).

2045119730 is a wasteful number, since it uses less digits than its factorization.

2045119730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2045119730 is about 45223.0000110563. Note that the first 4 decimals coincide. The cubic root of 2045119730 is about 1269.3252310671.

The spelling of 2045119730 in words is "two billion, forty-five million, one hundred nineteen thousand, seven hundred thirty".