263340532 has 144 divisors (see below), whose sum is σ = 627177600. Its totient is φ = 94348800.

The previous prime is 263340487. The next prime is 263340533. The reversal of 263340532 is 235043362.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 263340532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263340533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2607282 + ... + 2607382.

It is an arithmetic number, because the mean of its divisors is an integer number (4355400).

Almost surely, 2^263340532 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 263340532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313588800).

263340532 is an abundant number, since it is smaller than the sum of its proper divisors (363837068).

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

263340532 is a wasteful number, since it uses less digits than its factorization.

263340532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 263340532 is about 16227.7703952207. The cubic root of 263340532 is about 640.9722624641.

Adding to 263340532 its reverse (235043362), we get a palindrome (498383894).

The spelling of 263340532 in words is "two hundred sixty-three million, three hundred forty thousand, five hundred thirty-two".