264405263 has 8 divisors (see below), whose sum is σ = 276245088. Its totient is φ = 252594144.

The previous prime is 264405257. The next prime is 264405289. The reversal of 264405263 is 362504462.

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

It is a cyclic number.

It is not a de Polignac number, because 264405263 - 2⁴ = 264405247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264405763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12881 + ... + 26357.

It is an arithmetic number, because the mean of its divisors is an integer number (34530636).

Almost surely, 2^264405263 is an apocalyptic number.

264405263 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

264405263 is a deficient number, since it is larger than the sum of its proper divisors (11839825).

264405263 is a wasteful number, since it uses less digits than its factorization.

264405263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14353.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 264405263 is about 16260.5431336103. The cubic root of 264405263 is about 641.8349544843.

The spelling of 264405263 in words is "two hundred sixty-four million, four hundred five thousand, two hundred sixty-three".