263530872 has 288 divisors, whose sum is σ = 885109680. Its totient is φ = 69949440.

The previous prime is 263530867. The next prime is 263530873. The reversal of 263530872 is 278035362.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263530873) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7122438 + ... + 7122474.

Almost surely, 2^263530872 is an apocalyptic number.

263530872 is a gapful number since it is divisible by the number (22) 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 263530872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442554840).

263530872 is an abundant number, since it is smaller than the sum of its proper divisors (621578808).

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

263530872 is a wasteful number, since it uses less digits than its factorization.

263530872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 263530872 is about 16233.6339739443. The cubic root of 263530872 is about 641.1266547981.

It can be divided in two parts, 263 and 530872, that added together give a palindrome (531135).

The spelling of 263530872 in words is "two hundred sixty-three million, five hundred thirty thousand, eight hundred seventy-two".