4378039040 has 72 divisors (see below), whose sum is σ = 10742675328. Its totient is φ = 1708482560.

The previous prime is 4378039037. The next prime is 4378039067. The reversal of 4378039040 is 409308734.

It is a junction number, because it is equal to n+sod(n) for n = 4378038985 and 4378039003.

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, 10769 + ... + 94191.

It is an arithmetic number, because the mean of its divisors is an integer number (149203824).

Almost surely, 2^4378039040 is an apocalyptic number.

4378039040 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 4378039040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5371337664).

4378039040 is an abundant number, since it is smaller than the sum of its proper divisors (6364636288).

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

4378039040 is an equidigital number, since it uses as much as digits as its factorization.

4378039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83485 (or 83471 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 4378039040 is about 66166.7517715658. The cubic root of 4378039040 is about 1635.9117684456.

The spelling of 4378039040 in words is "four billion, three hundred seventy-eight million, thirty-nine thousand, forty".