2854778840 has 64 divisors (see below), whose sum is σ = 6640081920. Its totient is φ = 1103472000.

The previous prime is 2854778831. The next prime is 2854778851. The reversal of 2854778840 is 488774582.

2854778840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1202855 + ... + 1205225.

It is an arithmetic number, because the mean of its divisors is an integer number (103751280).

Almost surely, 2^2854778840 is an apocalyptic number.

2854778840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2854778840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3320040960).

2854778840 is an abundant number, since it is smaller than the sum of its proper divisors (3785303080).

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

2854778840 is a wasteful number, since it uses less digits than its factorization.

2854778840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 53.

The square root of 2854778840 is about 53430.1304508982. The cubic root of 2854778840 is about 1418.5919455203.

The spelling of 2854778840 in words is "two billion, eight hundred fifty-four million, seven hundred seventy-eight thousand, eight hundred forty".