2044555136 has 128 divisors (see below), whose sum is σ = 4534185600. Its totient is φ = 912457728.

The previous prime is 2044555127. The next prime is 2044555141. The reversal of 2044555136 is 6315554402.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 2044555096 and 2044555105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8554505 + ... + 8554743.

It is an arithmetic number, because the mean of its divisors is an integer number (35423325).

Almost surely, 2^2044555136 is an apocalyptic number.

2044555136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2044555136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267092800).

2044555136 is an abundant number, since it is smaller than the sum of its proper divisors (2489630464).

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

2044555136 is a wasteful number, since it uses less digits than its factorization.

2044555136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 2044555136 is about 45216.7572477284. The cubic root of 2044555136 is about 1269.2084132336.

The spelling of 2044555136 in words is "two billion, forty-four million, five hundred fifty-five thousand, one hundred thirty-six".