393849488 has 20 divisors (see below), whose sum is σ = 770953260. Its totient is φ = 194893824.

The previous prime is 393849487. The next prime is 393849563. The reversal of 393849488 is 884948393.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 242362624 + 151486864 = 15568^2 + 12308^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (393849481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125333 + ... + 128436.

It is an arithmetic number, because the mean of its divisors is an integer number (38547663).

Almost surely, 2^393849488 is an apocalyptic number.

It is an amenable number.

393849488 is a deficient number, since it is larger than the sum of its proper divisors (377103772).

393849488 is a wasteful number, since it uses less digits than its factorization.

393849488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253874 (or 253868 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 56.

The square root of 393849488 is about 19845.6415366196. The cubic root of 393849488 is about 733.0103301112.

The spelling of 393849488 in words is "three hundred ninety-three million, eight hundred forty-nine thousand, four hundred eighty-eight".