263632068 has 72 divisors (see below), whose sum is σ = 801702720. Its totient is φ = 71357760.

The previous prime is 263632037. The next prime is 263632133. The reversal of 263632068 is 860236362.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22743 + ... + 32318.

It is an arithmetic number, because the mean of its divisors is an integer number (11134760).

Almost surely, 2^263632068 is an apocalyptic number.

263632068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

263632068 is an abundant number, since it is smaller than the sum of its proper divisors (538070652).

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

263632068 is a wasteful number, since it uses less digits than its factorization.

263632068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55097 (or 55092 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 263632068 is about 16236.7505369763. The cubic root of 263632068 is about 641.2087086256.

The spelling of 263632068 in words is "two hundred sixty-three million, six hundred thirty-two thousand, sixty-eight".