263058438240 has 960 divisors, whose sum is σ = 1081341455040. Its totient is φ = 59659960320.

The previous prime is 263058438233. The next prime is 263058438283. The reversal of 263058438240 is 42834850362.

263058438240 is a `hidden beast` number, since 2 + 6 + 30 + 584 + 38 + 2 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 118440330 + ... + 118442550.

It is an arithmetic number, because the mean of its divisors is an integer number (1126397349).

Almost surely, 2^263058438240 is an apocalyptic number.

263058438240 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 263058438240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540670727520).

263058438240 is an abundant number, since it is smaller than the sum of its proper divisors (818283016800).

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

263058438240 is a wasteful number, since it uses less digits than its factorization.

263058438240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 263058438240 in words is "two hundred sixty-three billion, fifty-eight million, four hundred thirty-eight thousand, two hundred forty".