3985590394 has 16 divisors (see below), whose sum is σ = 6011879040. Its totient is φ = 1981647360.

The previous prime is 3985590377. The next prime is 3985590419. The reversal of 3985590394 is 4930955893.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591247 + ... + 597949.

It is an arithmetic number, because the mean of its divisors is an integer number (375742440).

Almost surely, 2^3985590394 is an apocalyptic number.

3985590394 is a deficient number, since it is larger than the sum of its proper divisors (2026288646).

3985590394 is a wasteful number, since it uses less digits than its factorization.

3985590394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325.

The product of its (nonzero) digits is 5248800, while the sum is 55.

The square root of 3985590394 is about 63131.5324857555. The cubic root of 3985590394 is about 1585.4926064911.

The spelling of 3985590394 in words is "three billion, nine hundred eighty-five million, five hundred ninety thousand, three hundred ninety-four".