2045128044 has 12 divisors (see below), whose sum is σ = 4771965464. Its totient is φ = 681709344.

The previous prime is 2045128039. The next prime is 2045128081. The reversal of 2045128044 is 4408215402.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85213657 + ... + 85213680.

Almost surely, 2^2045128044 is an apocalyptic number.

It is an amenable number.

2045128044 is an abundant number, since it is smaller than the sum of its proper divisors (2726837420).

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

2045128044 is a wasteful number, since it uses less digits than its factorization.

2045128044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170427344 (or 170427342 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 2045128044 is about 45223.0919332148. The cubic root of 2045128044 is about 1269.3269511221.

The spelling of 2045128044 in words is "two billion, forty-five million, one hundred twenty-eight thousand, forty-four".