2987530820 has 12 divisors (see below), whose sum is σ = 6273814764. Its totient is φ = 1195012320.

The previous prime is 2987530781. The next prime is 2987530841. The reversal of 2987530820 is 280357892.

It can be written as a sum of positive squares in 2 ways, for example, as 1085175364 + 1902355456 = 32942^2 + 43616^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74688251 + ... + 74688290.

It is an arithmetic number, because the mean of its divisors is an integer number (522817897).

Almost surely, 2^2987530820 is an apocalyptic number.

2987530820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2987530820 is an abundant number, since it is smaller than the sum of its proper divisors (3286283944).

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

2987530820 is a wasteful number, since it uses less digits than its factorization.

2987530820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149376550 (or 149376548 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2987530820 is about 54658.3097067591. The cubic root of 2987530820 is about 1440.2486099824.

The spelling of 2987530820 in words is "two billion, nine hundred eighty-seven million, five hundred thirty thousand, eight hundred twenty".