263968828 has 12 divisors (see below), whose sum is σ = 462117040. Its totient is φ = 131935392.

The previous prime is 263968823. The next prime is 263968849. The reversal of 263968828 is 828869362.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263968823) 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, 1600 + ... + 23032.

Almost surely, 2^263968828 is an apocalyptic number.

It is an amenable number.

263968828 is a deficient number, since it is larger than the sum of its proper divisors (198148212).

263968828 is a wasteful number, since it uses less digits than its factorization.

263968828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24516 (or 24514 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 263968828 is about 16247.1175289649. The cubic root of 263968828 is about 641.4816162023.

The spelling of 263968828 in words is "two hundred sixty-three million, nine hundred sixty-eight thousand, eight hundred twenty-eight".