263313420 has 24 divisors (see below), whose sum is σ = 737277744. Its totient is φ = 70216896.

The previous prime is 263313403. The next prime is 263313431. The reversal of 263313420 is 24313362.

263313420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2194219 + ... + 2194338.

It is an arithmetic number, because the mean of its divisors is an integer number (30719906).

Almost surely, 2^263313420 is an apocalyptic number.

263313420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263313420 is an abundant number, since it is smaller than the sum of its proper divisors (473964324).

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

263313420 is a wasteful number, since it uses less digits than its factorization.

263313420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388569 (or 4388567 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 263313420 is about 16226.9350155844. The cubic root of 263313420 is about 640.9502647915.

Adding to 263313420 its reverse (24313362), we get a palindrome (287626782).

The spelling of 263313420 in words is "two hundred sixty-three million, three hundred thirteen thousand, four hundred twenty".