263230385 has 8 divisors (see below), whose sum is σ = 344592576. Its totient is φ = 191440240.

The previous prime is 263230381. The next prime is 263230421. The reversal of 263230385 is 583032362.

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

It is not a de Polignac number, because 263230385 - 2² = 263230381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263230381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392949 + ... + 2393058.

It is an arithmetic number, because the mean of its divisors is an integer number (43074072).

Almost surely, 2^263230385 is an apocalyptic number.

It is an amenable number.

263230385 is a deficient number, since it is larger than the sum of its proper divisors (81362191).

263230385 is a wasteful number, since it uses less digits than its factorization.

263230385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786023.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 263230385 is about 16224.3762591971. The cubic root of 263230385 is about 640.8828838726.

The spelling of 263230385 in words is "two hundred sixty-three million, two hundred thirty thousand, three hundred eighty-five".