2049444720 has 320 divisors, whose sum is σ = 7374766080. Its totient is φ = 522547200.

The previous prime is 2049444713. The next prime is 2049444731. The reversal of 2049444720 is 274449402.

2049444720 is a `hidden beast` number, since 204 + 9 + 4 + 447 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8503800 + ... + 8504040.

It is an arithmetic number, because the mean of its divisors is an integer number (23046144).

Almost surely, 2^2049444720 is an apocalyptic number.

2049444720 is a gapful number since it is divisible by the number (20) 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 2049444720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3687383040).

2049444720 is an abundant number, since it is smaller than the sum of its proper divisors (5325321360).

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

2049444720 is a wasteful number, since it uses less digits than its factorization.

2049444720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 2049444720 is about 45270.7932336070. The cubic root of 2049444720 is about 1270.2193846726.

The spelling of 2049444720 in words is "two billion, forty-nine million, four hundred forty-four thousand, seven hundred twenty".