2449187780 has 48 divisors (see below), whose sum is σ = 5830466880. Its totient is φ = 856718208.

The previous prime is 2449187749. The next prime is 2449187789. The reversal of 2449187780 is 877819442.

It is not an unprimeable number, because it can be changed into a prime (2449187789) 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 15 ways as a sum of consecutive naturals, for example, 242954 + ... + 252833.

It is an arithmetic number, because the mean of its divisors is an integer number (121468060).

Almost surely, 2^2449187780 is an apocalyptic number.

2449187780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2449187780 is an abundant number, since it is smaller than the sum of its proper divisors (3381279100).

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

2449187780 is a wasteful number, since it uses less digits than its factorization.

2449187780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495828 (or 495826 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 2449187780 is about 49489.2693419493. The cubic root of 2449187780 is about 1347.9507601464.

The spelling of 2449187780 in words is "two billion, four hundred forty-nine million, one hundred eighty-seven thousand, seven hundred eighty".