4393494000 has 640 divisors, whose sum is σ = 18384537600. Its totient is φ = 982195200.

The previous prime is 4393493933. The next prime is 4393494019. The reversal of 4393494000 is 4943934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22301902 + ... + 22302098.

It is an arithmetic number, because the mean of its divisors is an integer number (28725840).

Almost surely, 2^4393494000 is an apocalyptic number.

4393494000 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 4393494000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9192268800).

4393494000 is an abundant number, since it is smaller than the sum of its proper divisors (13991043600).

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

4393494000 is a wasteful number, since it uses less digits than its factorization.

4393494000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 4393494000 is about 66283.4368451124. The cubic root of 4393494000 is about 1637.8344906499.

The spelling of 4393494000 in words is "four billion, three hundred ninety-three million, four hundred ninety-four thousand".