4378786720 has 288 divisors, whose sum is σ = 13191897600. Its totient is φ = 1344245760.

The previous prime is 4378786717. The next prime is 4378786723. The reversal of 4378786720 is 276878734.

It is an interprime number because it is at equal distance from previous prime (4378786717) and next prime (4378786723).

It is not an unprimeable number, because it can be changed into a prime (4378786723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10705876 + ... + 10706284.

It is an arithmetic number, because the mean of its divisors is an integer number (45805200).

Almost surely, 2^4378786720 is an apocalyptic number.

4378786720 is a gapful number since it is divisible by the number (40) 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 4378786720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6595948800).

4378786720 is an abundant number, since it is smaller than the sum of its proper divisors (8813110880).

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

4378786720 is a wasteful number, since it uses less digits than its factorization.

4378786720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 52.

The square root of 4378786720 is about 66172.4014979055. The cubic root of 4378786720 is about 1636.0048899609.

The spelling of 4378786720 in words is "four billion, three hundred seventy-eight million, seven hundred eighty-six thousand, seven hundred twenty".