2878837840 has 40 divisors (see below), whose sum is σ = 6699024360. Its totient is φ = 1150550016.

The previous prime is 2878837823. The next prime is 2878837853. The reversal of 2878837840 is 487388782.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 183982096 + 2694855744 = 13564^2 + 51912^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82576 + ... + 112144.

It is an arithmetic number, because the mean of its divisors is an integer number (167475609).

Almost surely, 2^2878837840 is an apocalyptic number.

2878837840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2878837840 is an abundant number, since it is smaller than the sum of its proper divisors (3820186520).

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

2878837840 is a wasteful number, since it uses less digits than its factorization.

2878837840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30799 (or 30793 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 55.

The square root of 2878837840 is about 53654.8025809433. The cubic root of 2878837840 is about 1422.5659220152.

The spelling of 2878837840 in words is "two billion, eight hundred seventy-eight million, eight hundred thirty-seven thousand, eight hundred forty".