4089493988 has 12 divisors (see below), whose sum is σ = 7179481260. Its totient is φ = 2038213632.

The previous prime is 4089493987. The next prime is 4089494023. The reversal of 4089493988 is 8893949804.

It can be written as a sum of positive squares in 2 ways, for example, as 1502957824 + 2586536164 = 38768^2 + 50858^2 .

It is a super-2 number, since 2×4089493988² = 33447922155776288288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4089493988.

It is not an unprimeable number, because it can be changed into a prime (4089493987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631933 + ... + 1634436.

It is an arithmetic number, because the mean of its divisors is an integer number (598290105).

Almost surely, 2^4089493988 is an apocalyptic number.

It is an amenable number.

4089493988 is a deficient number, since it is larger than the sum of its proper divisors (3089987272).

4089493988 is a wasteful number, since it uses less digits than its factorization.

4089493988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266686 (or 3266684 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 62.

The square root of 4089493988 is about 63949.1515815495. The cubic root of 4089493988 is about 1599.1524140990.

The spelling of 4089493988 in words is "four billion, eighty-nine million, four hundred ninety-three thousand, nine hundred eighty-eight".