263940912 has 120 divisors (see below), whose sum is σ = 788828976. Its totient is φ = 82096128.

The previous prime is 263940883. The next prime is 263940931. The reversal of 263940912 is 219049362.

263940912 is a `hidden beast` number, since 2 + 639 + 4 + 0 + 9 + 12 = 666.

263940912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334983 + ... + 335769.

Almost surely, 2^263940912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263940912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394414488).

263940912 is an abundant number, since it is smaller than the sum of its proper divisors (524888064).

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

263940912 is a wasteful number, since it uses less digits than its factorization.

263940912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 263940912 is about 16246.2584000132. The cubic root of 263940912 is about 641.4590021279.

The spelling of 263940912 in words is "two hundred sixty-three million, nine hundred forty thousand, nine hundred twelve".