263345442 has 8 divisors (see below), whose sum is σ = 526690896. Its totient is φ = 87781812.

The previous prime is 263345441. The next prime is 263345449. The reversal of 263345442 is 244543362.

263345442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

263345442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (263345441) 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, 21945448 + ... + 21945459.

It is an arithmetic number, because the mean of its divisors is an integer number (65836362).

Almost surely, 2^263345442 is an apocalyptic number.

263345442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263345442 is a wasteful number, since it uses less digits than its factorization.

263345442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43890912.

The product of its digits is 69120, while the sum is 33.

The square root of 263345442 is about 16227.9216783912. The cubic root of 263345442 is about 640.9762460947.

The spelling of 263345442 in words is "two hundred sixty-three million, three hundred forty-five thousand, four hundred forty-two".