2045869056 has 528 divisors, whose sum is σ = 7805456640. Its totient is φ = 514252800.

The previous prime is 2045869037. The next prime is 2045869081. The reversal of 2045869056 is 6509685402.

It is a tau number, because it is divible by the number of its divisors (528).

It is a super-2 number, since 2×2045869056² = 8371160388596662272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65995761 + ... + 65995791.

Almost surely, 2^2045869056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045869056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3902728320).

2045869056 is an abundant number, since it is smaller than the sum of its proper divisors (5759587584).

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

2045869056 is a wasteful number, since it uses less digits than its factorization.

2045869056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2045869056 is about 45231.2840410263. The cubic root of 2045869056 is about 1269.4802378446.

The spelling of 2045869056 in words is "two billion, forty-five million, eight hundred sixty-nine thousand, fifty-six".