393241256 has 16 divisors (see below), whose sum is σ = 739520340. Its totient is φ = 196035840.

The previous prime is 393241253. The next prime is 393241307. The reversal of 393241256 is 652142393.

It can be written as a sum of positive squares in 2 ways, for example, as 356832100 + 36409156 = 18890^2 + 6034^2 .

It is not an unprimeable number, because it can be changed into a prime (393241253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70235 + ... + 75626.

Almost surely, 2^393241256 is an apocalyptic number.

It is an amenable number.

393241256 is a deficient number, since it is larger than the sum of its proper divisors (346279084).

393241256 is a wasteful number, since it uses less digits than its factorization.

393241256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146204 (or 146200 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 393241256 is about 19830.3115457120. The cubic root of 393241256 is about 732.6328000670.

The spelling of 393241256 in words is "three hundred ninety-three million, two hundred forty-one thousand, two hundred fifty-six".