2489974784 has 108 divisors (see below), whose sum is σ = 5508673002. Its totient is φ = 1124597760.

The previous prime is 2489974759. The next prime is 2489974787. The reversal of 2489974784 is 4874799842.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2291728384 + 198246400 = 47872^2 + 14080^2 .

It is a super-3 number, since 3×2489974784³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2489974787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15859634 + ... + 15859790.

Almost surely, 2^2489974784 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 2489974784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754336501).

2489974784 is an abundant number, since it is smaller than the sum of its proper divisors (3018698218).

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

2489974784 is an frugal number, since it uses more digits than its factorization.

2489974784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 170 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 62.

The square root of 2489974784 is about 49899.6471330209. The cubic root of 2489974784 is about 1355.3922030198.

The spelling of 2489974784 in words is "two billion, four hundred eighty-nine million, nine hundred seventy-four thousand, seven hundred eighty-four".