393254389 has 8 divisors (see below), whose sum is σ = 440599968. Its totient is φ = 347841360.

The previous prime is 393254383. The next prime is 393254417. The reversal of 393254389 is 983452393.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393254389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393254383) 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, 482707 + ... + 483520.

It is an arithmetic number, because the mean of its divisors is an integer number (55074996).

Almost surely, 2^393254389 is an apocalyptic number.

It is an amenable number.

393254389 is a deficient number, since it is larger than the sum of its proper divisors (47345579).

393254389 is a wasteful number, since it uses less digits than its factorization.

393254389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966275.

The product of its digits is 699840, while the sum is 46.

The square root of 393254389 is about 19830.6426774323. The cubic root of 393254389 is about 732.6409558402.

The spelling of 393254389 in words is "three hundred ninety-three million, two hundred fifty-four thousand, three hundred eighty-nine".