2891584940 has 12 divisors (see below), whose sum is σ = 6072328416. Its totient is φ = 1156633968.

The previous prime is 2891584937. The next prime is 2891584951. The reversal of 2891584940 is 494851982.

It is a super-2 number, since 2×2891584940² = 16722526930469607200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72289604 + ... + 72289643.

It is an arithmetic number, because the mean of its divisors is an integer number (506027368).

Almost surely, 2^2891584940 is an apocalyptic number.

2891584940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2891584940 is an abundant number, since it is smaller than the sum of its proper divisors (3180743476).

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

2891584940 is a wasteful number, since it uses less digits than its factorization.

2891584940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144579256 (or 144579254 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 2891584940 is about 53773.4594386487. The cubic root of 2891584940 is about 1424.6624730500.

The spelling of 2891584940 in words is "two billion, eight hundred ninety-one million, five hundred eighty-four thousand, nine hundred forty".