4394081000 has 64 divisors (see below), whose sum is σ = 10729255680. Its totient is φ = 1681204800.

The previous prime is 4394080981. The next prime is 4394081009. The reversal of 4394081000 is 1804934.

It is a super-2 number, since 2×4394081000² = 38615895669122000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4394081009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72524 + ... + 118523.

It is an arithmetic number, because the mean of its divisors is an integer number (167644620).

Almost surely, 2^4394081000 is an apocalyptic number.

4394081000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4394081000 is an abundant number, since it is smaller than the sum of its proper divisors (6335174680).

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

4394081000 is a wasteful number, since it uses less digits than its factorization.

4394081000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191091 (or 191077 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4394081000 is about 66287.8646510807. The cubic root of 4394081000 is about 1637.9074292596.

Adding to 4394081000 its reverse (1804934), we get a palindrome (4395885934).

The spelling of 4394081000 in words is "four billion, three hundred ninety-four million, eighty-one thousand".