4378656 has 48 divisors (see below), whose sum is σ = 12174624. Its totient is φ = 1373184.

The previous prime is 4378631. The next prime is 4378697. The reversal of 4378656 is 6568734.

It is a tau number, because it is divible by the number of its divisors (48).

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, 291 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (253638).

Almost surely, 2^4378656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4378656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6087312).

4378656 is an abundant number, since it is smaller than the sum of its proper divisors (7795968).

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

4378656 is a wasteful number, since it uses less digits than its factorization.

4378656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2705 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 4378656 is about 2092.5238349897. The cubic root of 4378656 is about 163.5988609904.

The spelling of 4378656 in words is "four million, three hundred seventy-eight thousand, six hundred fifty-six".