263715040 has 48 divisors (see below), whose sum is σ = 629233920. Its totient is φ = 104435200.

The previous prime is 263715031. The next prime is 263715061. The reversal of 263715040 is 40517362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 24319.

It is an arithmetic number, because the mean of its divisors is an integer number (13109040).

Almost surely, 2^263715040 is an apocalyptic number.

263715040 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 263715040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314616960).

263715040 is an abundant number, since it is smaller than the sum of its proper divisors (365518880).

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

263715040 is a wasteful number, since it uses less digits than its factorization.

263715040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435 (or 16427 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 263715040 is about 16239.3054038650. The cubic root of 263715040 is about 641.2759700289.

The spelling of 263715040 in words is "two hundred sixty-three million, seven hundred fifteen thousand, forty".