263547480 has 256 divisors, whose sum is σ = 973440000. Its totient is φ = 56899584.

The previous prime is 263547463. The next prime is 263547491. The reversal of 263547480 is 84745362.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 781872 + ... + 782208.

It is an arithmetic number, because the mean of its divisors is an integer number (3802500).

Almost surely, 2^263547480 is an apocalyptic number.

263547480 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 263547480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486720000).

263547480 is an abundant number, since it is smaller than the sum of its proper divisors (709892520).

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

263547480 is a wasteful number, since it uses less digits than its factorization.

263547480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 263547480 is about 16234.1454964528. The cubic root of 263547480 is about 641.1401226798.

The spelling of 263547480 in words is "two hundred sixty-three million, five hundred forty-seven thousand, four hundred eighty".