263287488 has 112 divisors (see below), whose sum is σ = 717686144. Its totient is φ = 85155840.

The previous prime is 263287481. The next prime is 263287499. The reversal of 263287488 is 884782362.

It is a happy number.

263287488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (263287481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247703 + ... + 1247913.

It is an arithmetic number, because the mean of its divisors is an integer number (6407912).

Almost surely, 2^263287488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263287488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358843072).

263287488 is an abundant number, since it is smaller than the sum of its proper divisors (454398656).

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

263287488 is a wasteful number, since it uses less digits than its factorization.

263287488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 380 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 263287488 is about 16226.1359540711. The cubic root of 263287488 is about 640.9292231143.

The spelling of 263287488 in words is "two hundred sixty-three million, two hundred eighty-seven thousand, four hundred eighty-eight".