263379948 has 96 divisors (see below), whose sum is σ = 680687616. Its totient is φ = 78769152.

The previous prime is 263379947. The next prime is 263379971. The reversal of 263379948 is 849973362.

It is a self number, because there is not a number n which added to its sum of digits gives 263379948.

It is not an unprimeable number, because it can be changed into a prime (263379947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1180965 + ... + 1181187.

It is an arithmetic number, because the mean of its divisors is an integer number (7090496).

Almost surely, 2^263379948 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 263379948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340343808).

263379948 is an abundant number, since it is smaller than the sum of its proper divisors (417307668).

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

263379948 is a wasteful number, since it uses less digits than its factorization.

263379948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The square root of 263379948 is about 16228.9848111334. The cubic root of 263379948 is about 641.0042404536.

The spelling of 263379948 in words is "two hundred sixty-three million, three hundred seventy-nine thousand, nine hundred forty-eight".