878757440 has 56 divisors (see below), whose sum is σ = 2282781312. Its totient is φ = 319546880.

The previous prime is 878757433. The next prime is 878757443. The reversal of 878757440 is 44757878.

It is not an unprimeable number, because it can be changed into a prime (878757443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121304 + ... + 128343.

It is an arithmetic number, because the mean of its divisors is an integer number (40763952).

Almost surely, 2^878757440 is an apocalyptic number.

878757440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

878757440 is an abundant number, since it is smaller than the sum of its proper divisors (1404023872).

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

878757440 is a wasteful number, since it uses less digits than its factorization.

878757440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249675 (or 249665 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 50.

The square root of 878757440 is about 29643.8432056304. The cubic root of 878757440 is about 957.8327266374.

The spelling of 878757440 in words is "eight hundred seventy-eight million, seven hundred fifty-seven thousand, four hundred forty".