4394661588 has 96 divisors (see below), whose sum is σ = 11846459520. Its totient is φ = 1407732480.

The previous prime is 4394661559. The next prime is 4394661659. The reversal of 4394661588 is 8851664934.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289270 + ... + 304082.

It is an arithmetic number, because the mean of its divisors is an integer number (123400620).

Almost surely, 2^4394661588 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 4394661588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5923229760).

4394661588 is an abundant number, since it is smaller than the sum of its proper divisors (7451797932).

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

4394661588 is a wasteful number, since it uses less digits than its factorization.

4394661588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934 (or 14926 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 4394661588 is about 66292.2437997086. The cubic root of 4394661588 is about 1637.9795647466.

The spelling of 4394661588 in words is "four billion, three hundred ninety-four million, six hundred sixty-one thousand, five hundred eighty-eight".