2044899820 has 12 divisors (see below), whose sum is σ = 4294289664. Its totient is φ = 817959920.

The previous prime is 2044899817. The next prime is 2044899827. The reversal of 2044899820 is 289984402.

It is not an unprimeable number, because it can be changed into a prime (2044899827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51122476 + ... + 51122515.

It is an arithmetic number, because the mean of its divisors is an integer number (357857472).

Almost surely, 2^2044899820 is an apocalyptic number.

2044899820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044899820 is an abundant number, since it is smaller than the sum of its proper divisors (2249389844).

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

2044899820 is a wasteful number, since it uses less digits than its factorization.

2044899820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102245000 (or 102244998 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 2044899820 is about 45220.5685501631. The cubic root of 2044899820 is about 1269.2797329457.

The spelling of 2044899820 in words is "two billion, forty-four million, eight hundred ninety-nine thousand, eight hundred twenty".