2912838840 has 64 divisors (see below), whose sum is σ = 9709466400. Its totient is φ = 776756736.

The previous prime is 2912838839. The next prime is 2912838881. The reversal of 2912838840 is 488382192.

2912838840 is a `hidden beast` number, since 291 + 283 + 8 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 15 ways as a sum of consecutive naturals, for example, 1347457 + ... + 1349616.

Almost surely, 2^2912838840 is an apocalyptic number.

2912838840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2912838840 is an abundant number, since it is smaller than the sum of its proper divisors (6796627560).

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

2912838840 is a wasteful number, since it uses less digits than its factorization.

2912838840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697093 (or 2697083 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2912838840 is about 53970.7220629852. The cubic root of 2912838840 is about 1428.1445020073.

The spelling of 2912838840 in words is "two billion, nine hundred twelve million, eight hundred thirty-eight thousand, eight hundred forty".