263520242 has 16 divisors (see below), whose sum is σ = 399725280. Its totient is φ = 130283328.

The previous prime is 263520241. The next prime is 263520251. The reversal of 263520242 is 242025362.

It is not an unprimeable number, because it can be changed into a prime (263520241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176234 + ... + 177722.

It is an arithmetic number, because the mean of its divisors is an integer number (24982830).

Almost surely, 2^263520242 is an apocalyptic number.

263520242 is a deficient number, since it is larger than the sum of its proper divisors (136205038).

263520242 is a wasteful number, since it uses less digits than its factorization.

263520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 263520242 is about 16233.3065639752. The cubic root of 263520242 is about 641.1180343432.

The spelling of 263520242 in words is "two hundred sixty-three million, five hundred twenty thousand, two hundred forty-two".