2489579892 has 144 divisors (see below), whose sum is σ = 7009172352. Its totient is φ = 741058560.

The previous prime is 2489579867. The next prime is 2489579969. The reversal of 2489579892 is 2989759842.

It is a happy number.

2489579892 is a `hidden beast` number, since 2 + 489 + 5 + 79 + 89 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1927767 + ... + 1929057.

It is an arithmetic number, because the mean of its divisors is an integer number (48674808).

Almost surely, 2^2489579892 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 2489579892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3504586176).

2489579892 is an abundant number, since it is smaller than the sum of its proper divisors (4519592460).

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

2489579892 is a wasteful number, since it uses less digits than its factorization.

2489579892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1473 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 2489579892 is about 49895.6901144778. The cubic root of 2489579892 is about 1355.3205474300.

The spelling of 2489579892 in words is "two billion, four hundred eighty-nine million, five hundred seventy-nine thousand, eight hundred ninety-two".