263660472 has 24 divisors (see below), whose sum is σ = 714080640. Its totient is φ = 87886800.

The previous prime is 263660471. The next prime is 263660479. The reversal of 263660472 is 274066362.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263660471) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1830904 + ... + 1831047.

It is an arithmetic number, because the mean of its divisors is an integer number (29753360).

Almost surely, 2^263660472 is an apocalyptic number.

It is an amenable number.

263660472 is an abundant number, since it is smaller than the sum of its proper divisors (450420168).

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

263660472 is a wasteful number, since it uses less digits than its factorization.

263660472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661963 (or 3661956 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 263660472 is about 16237.6251958222. The cubic root of 263660472 is about 641.2317359685.

The spelling of 263660472 in words is "two hundred sixty-three million, six hundred sixty thousand, four hundred seventy-two".