263608828 has 18 divisors (see below), whose sum is σ = 536632656. Its totient is φ = 112975128.

The previous prime is 263608823. The next prime is 263608847. The reversal of 263608828 is 828806362.

It is a super-2 number, since 2×263608828² = 138979228399067168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263608823) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 672276 + ... + 672667.

Almost surely, 2^263608828 is an apocalyptic number.

263608828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

263608828 is an abundant number, since it is smaller than the sum of its proper divisors (273023828).

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

263608828 is a wasteful number, since it uses less digits than its factorization.

263608828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344961 (or 1344952 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 263608828 is about 16236.0348607657. The cubic root of 263608828 is about 641.1898665472.

The spelling of 263608828 in words is "two hundred sixty-three million, six hundred eight thousand, eight hundred twenty-eight".