393360239 has 4 divisors (see below), whose sum is σ = 395773656. Its totient is φ = 390946824.

The previous prime is 393360151. The next prime is 393360293. The reversal of 393360239 is 932063393.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 393360239 - 2¹⁶ = 393294703 is a prime.

It is a super-2 number, since 2×393360239² = 309464555252274242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393365239) 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, 1206464 + ... + 1206789.

It is an arithmetic number, because the mean of its divisors is an integer number (98943414).

Almost surely, 2^393360239 is an apocalyptic number.

393360239 is a deficient number, since it is larger than the sum of its proper divisors (2413417).

393360239 is a wasteful number, since it uses less digits than its factorization.

393360239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413416.

The product of its (nonzero) digits is 78732, while the sum is 38.

The square root of 393360239 is about 19833.3113473267. The cubic root of 393360239 is about 732.7066835137.

The spelling of 393360239 in words is "three hundred ninety-three million, three hundred sixty thousand, two hundred thirty-nine".