878377920 has 336 divisors, whose sum is σ = 3302373888. Its totient is φ = 197191680.

The previous prime is 878377919. The next prime is 878377943. The reversal of 878377920 is 29773878.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3339709 + ... + 3339971.

Almost surely, 2^878377920 is an apocalyptic number.

878377920 is a gapful number since it is divisible by the number (80) 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 878377920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651186944).

878377920 is an abundant number, since it is smaller than the sum of its proper divisors (2423995968).

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

878377920 is a wasteful number, since it uses less digits than its factorization.

878377920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 878377920 is about 29637.4411850956. The cubic root of 878377920 is about 957.6948163698.

The spelling of 878377920 in words is "eight hundred seventy-eight million, three hundred seventy-seven thousand, nine hundred twenty".