263876045 has 16 divisors (see below), whose sum is σ = 326112048. Its totient is φ = 204825600.

The previous prime is 263876027. The next prime is 263876069. The reversal of 263876045 is 540678362.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 20921476 + 242954569 = 4574^2 + 15587^2 .

It is not a de Polignac number, because 263876045 - 2²⁴ = 247098829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263875993 and 263876011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72407 + ... + 75963.

It is an arithmetic number, because the mean of its divisors is an integer number (20382003).

Almost surely, 2^263876045 is an apocalyptic number.

It is an amenable number.

263876045 is a deficient number, since it is larger than the sum of its proper divisors (62236003).

263876045 is a wasteful number, since it uses less digits than its factorization.

263876045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 263876045 is about 16244.2619099792. The cubic root of 263876045 is about 641.4064487869.

The spelling of 263876045 in words is "two hundred sixty-three million, eight hundred seventy-six thousand, forty-five".