4385043685440 has 672 divisors, whose sum is σ = 17226070557696. Its totient is φ = 1013457899520.

The previous prime is 4385043685427. The next prime is 4385043685469. The reversal of 4385043685440 is 445863405834.

4385043685440 is a `hidden beast` number, since 4 + 3 + 8 + 50 + 43 + 6 + 8 + 544 + 0 = 666.

4385043685440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 223682679 + ... + 223702281.

It is an arithmetic number, because the mean of its divisors is an integer number (25634033568).

Almost surely, 2^{4385043685440} is an apocalyptic number.

4385043685440 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 4385043685440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8613035278848).

4385043685440 is an abundant number, since it is smaller than the sum of its proper divisors (12841026872256).

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

4385043685440 is a wasteful number, since it uses less digits than its factorization.

4385043685440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19967 (or 19954 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 54.

The spelling of 4385043685440 in words is "four trillion, three hundred eighty-five billion, forty-three million, six hundred eighty-five thousand, four hundred forty".