2045804900 has 36 divisors (see below), whose sum is σ = 4474380288. Its totient is φ = 811873440.

The previous prime is 2045804869. The next prime is 2045804903. The reversal of 2045804900 is 94085402.

It is not an unprimeable number, because it can be changed into a prime (2045804903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67844 + ... + 93243.

Almost surely, 2^2045804900 is an apocalyptic number.

2045804900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045804900 is an abundant number, since it is smaller than the sum of its proper divisors (2428575388).

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

2045804900 is a wasteful number, since it uses less digits than its factorization.

2045804900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161228 (or 161221 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2045804900 is about 45230.5748360553. The cubic root of 2045804900 is about 1269.4669679133.

The spelling of 2045804900 in words is "two billion, forty-five million, eight hundred four thousand, nine hundred".