2045500200 has 72 divisors (see below), whose sum is σ = 6869477550. Its totient is φ = 545466240.

The previous prime is 2045500199. The next prime is 2045500253. The reversal of 2045500200 is 20055402.

It can be written as a sum of positive squares in 3 ways, for example, as 1798947396 + 246552804 = 42414^2 + 15702^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 566395 + ... + 569994.

Almost surely, 2^2045500200 is an apocalyptic number.

2045500200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045500200 is an abundant number, since it is smaller than the sum of its proper divisors (4823977350).

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

2045500200 is a wasteful number, since it uses less digits than its factorization.

2045500200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136411 (or 1136399 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2045500200 is about 45227.2064138390. The cubic root of 2045500200 is about 1269.4039404320.

Adding to 2045500200 its reverse (20055402), we get a palindrome (2065555602).

The spelling of 2045500200 in words is "two billion, forty-five million, five hundred thousand, two hundred".