2544490728 has 96 divisors (see below), whose sum is σ = 7463383200. Its totient is φ = 778495104.

The previous prime is 2544490723. The next prime is 2544490787. The reversal of 2544490728 is 8270944452.

It is not an unprimeable number, because it can be changed into a prime (2544490723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159951 + ... + 175137.

It is an arithmetic number, because the mean of its divisors is an integer number (77743575).

Almost surely, 2^2544490728 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 2544490728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3731691600).

2544490728 is an abundant number, since it is smaller than the sum of its proper divisors (4918892472).

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

2544490728 is a wasteful number, since it uses less digits than its factorization.

2544490728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15391 (or 15384 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 2544490728 is about 50442.9452748350. The cubic root of 2544490728 is about 1365.2126094782.

The spelling of 2544490728 in words is "two billion, five hundred forty-four million, four hundred ninety thousand, seven hundred twenty-eight".