259870466 has 8 divisors (see below), whose sum is σ = 412735500. Its totient is φ = 122291968.

The previous prime is 259870463. The next prime is 259870487. The reversal of 259870466 is 664078952.

It can be written as a sum of positive squares in 2 ways, for example, as 259693225 + 177241 = 16115^2 + 421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 259870466.

It is not an unprimeable number, because it can be changed into a prime (259870463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3821591 + ... + 3821658.

Almost surely, 2^259870466 is an apocalyptic number.

259870466 is a deficient number, since it is larger than the sum of its proper divisors (152865034).

259870466 is a wasteful number, since it uses less digits than its factorization.

259870466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643268.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 259870466 is about 16120.4983173598. The cubic root of 259870466 is about 638.1444185209.

The spelling of 259870466 in words is "two hundred fifty-nine million, eight hundred seventy thousand, four hundred sixty-six".