263607040 has 72 divisors (see below), whose sum is σ = 646950528. Its totient is φ = 102850560.

The previous prime is 263607037. The next prime is 263607041. The reversal of 263607040 is 40706362.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (263607041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49969 + ... + 54991.

It is an arithmetic number, because the mean of its divisors is an integer number (8985424).

Almost surely, 2^263607040 is an apocalyptic number.

263607040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263607040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323475264).

263607040 is an abundant number, since it is smaller than the sum of its proper divisors (383343488).

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

263607040 is an equidigital number, since it uses as much as digits as its factorization.

263607040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 263607040 is about 16235.9797979672. The cubic root of 263607040 is about 641.1884168612.

The spelling of 263607040 in words is "two hundred sixty-three million, six hundred seven thousand, forty".