478236265 has 16 divisors (see below), whose sum is σ = 654384528. Its totient is φ = 332384256.

The previous prime is 478236257. The next prime is 478236277. The reversal of 478236265 is 562632874.

It can be written as a sum of positive squares in 8 ways, for example, as 57699216 + 420537049 = 7596^2 + 20507^2 .

It is a cyclic number.

It is not a de Polignac number, because 478236265 - 2³ = 478236257 is a prime.

It is a super-2 number, since 2×478236265² = 457419850322300450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215292 + ... + 217501.

It is an arithmetic number, because the mean of its divisors is an integer number (40899033).

Almost surely, 2^478236265 is an apocalyptic number.

It is an amenable number.

478236265 is a deficient number, since it is larger than the sum of its proper divisors (176148263).

478236265 is a wasteful number, since it uses less digits than its factorization.

478236265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432828.

The product of its digits is 483840, while the sum is 43.

The square root of 478236265 is about 21868.6136963457. The cubic root of 478236265 is about 782.0133527502.

The spelling of 478236265 in words is "four hundred seventy-eight million, two hundred thirty-six thousand, two hundred sixty-five".