393312241 has 8 divisors (see below), whose sum is σ = 451366784. Its totient is φ = 335724480.

The previous prime is 393312233. The next prime is 393312253. The reversal of 393312241 is 142213393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 393312241 - 2³ = 393312233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393372241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114885 + ... + 118258.

It is an arithmetic number, because the mean of its divisors is an integer number (56420848).

Almost surely, 2^393312241 is an apocalyptic number.

It is an amenable number.

393312241 is a deficient number, since it is larger than the sum of its proper divisors (58054543).

393312241 is a wasteful number, since it uses less digits than its factorization.

393312241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233391.

The product of its digits is 3888, while the sum is 28.

The square root of 393312241 is about 19832.1012754574. The cubic root of 393312241 is about 732.6768805643.

The spelling of 393312241 in words is "three hundred ninety-three million, three hundred twelve thousand, two hundred forty-one".