2989577540 has 12 divisors (see below), whose sum is σ = 6278112876. Its totient is φ = 1195831008.

The previous prime is 2989577533. The next prime is 2989577561. The reversal of 2989577540 is 457759892.

It can be written as a sum of positive squares in 2 ways, for example, as 1968519424 + 1021058116 = 44368^2 + 31954^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74739419 + ... + 74739458.

It is an arithmetic number, because the mean of its divisors is an integer number (523176073).

Almost surely, 2^2989577540 is an apocalyptic number.

2989577540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2989577540 is an abundant number, since it is smaller than the sum of its proper divisors (3288535336).

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

2989577540 is a wasteful number, since it uses less digits than its factorization.

2989577540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149478886 (or 149478884 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 56.

The square root of 2989577540 is about 54677.0293633442. The cubic root of 2989577540 is about 1440.5774336727.

The spelling of 2989577540 in words is "two billion, nine hundred eighty-nine million, five hundred seventy-seven thousand, five hundred forty".