263949472 has 48 divisors (see below), whose sum is σ = 555532992. Its totient is φ = 123143680.

The previous prime is 263949443. The next prime is 263949493. The reversal of 263949472 is 274949362.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 25803 + ... + 34549.

It is an arithmetic number, because the mean of its divisors is an integer number (11573604).

Almost surely, 2^263949472 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 263949472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277766496).

263949472 is an abundant number, since it is smaller than the sum of its proper divisors (291583520).

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

263949472 is a wasteful number, since it uses less digits than its factorization.

263949472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821 (or 8813 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 263949472 is about 16246.5218431515. The cubic root of 263949472 is about 641.4659365458.

The spelling of 263949472 in words is "two hundred sixty-three million, nine hundred forty-nine thousand, four hundred seventy-two".