2878064440 has 16 divisors (see below), whose sum is σ = 6475645080. Its totient is φ = 1151225760.

The previous prime is 2878064417. The next prime is 2878064477. The reversal of 2878064440 is 444608782.

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 3 ways as a sum of consecutive naturals, for example, 35975766 + ... + 35975845.

Almost surely, 2^2878064440 is an apocalyptic number.

2878064440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2878064440 is an abundant number, since it is smaller than the sum of its proper divisors (3597580640).

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

2878064440 is a wasteful number, since it uses less digits than its factorization.

2878064440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71951622 (or 71951618 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The square root of 2878064440 is about 53647.5949134721. The cubic root of 2878064440 is about 1422.4385197920.

The spelling of 2878064440 in words is "two billion, eight hundred seventy-eight million, sixty-four thousand, four hundred forty".