263276730 has 80 divisors (see below), whose sum is σ = 745224480. Its totient is φ = 66508128.

The previous prime is 263276723. The next prime is 263276731. The reversal of 263276730 is 37672362.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (263276731) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6837 + ... + 23943.

It is an arithmetic number, because the mean of its divisors is an integer number (9315306).

Almost surely, 2^263276730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263276730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372612240).

263276730 is an abundant number, since it is smaller than the sum of its proper divisors (481947750).

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

263276730 is a wasteful number, since it uses less digits than its factorization.

263276730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145 (or 17136 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 263276730 is about 16225.8044484703. The cubic root of 263276730 is about 640.9204934800.

The spelling of 263276730 in words is "two hundred sixty-three million, two hundred seventy-six thousand, seven hundred thirty".