393042648 has 32 divisors (see below), whose sum is σ = 990351360. Its totient is φ = 129981600.

The previous prime is 393042641. The next prime is 393042673. The reversal of 393042648 is 846240393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393042641) 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 7 ways as a sum of consecutive naturals, for example, 61428 + ... + 67523.

It is an arithmetic number, because the mean of its divisors is an integer number (30948480).

Almost surely, 2^393042648 is an apocalyptic number.

It is an amenable number.

393042648 is an abundant number, since it is smaller than the sum of its proper divisors (597308712).

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

393042648 is a wasteful number, since it uses less digits than its factorization.

393042648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129087 (or 129083 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 393042648 is about 19825.3032259282. The cubic root of 393042648 is about 732.5094396311.

The spelling of 393042648 in words is "three hundred ninety-three million, forty-two thousand, six hundred forty-eight".