259952642 has 16 divisors (see below), whose sum is σ = 411043200. Its totient is φ = 122958000.

The previous prime is 259952611. The next prime is 259952653. The reversal of 259952642 is 246259952.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 259952593 and 259952602.

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 7 ways as a sum of consecutive naturals, for example, 23984 + ... + 33092.

It is an arithmetic number, because the mean of its divisors is an integer number (25690200).

Almost surely, 2^259952642 is an apocalyptic number.

259952642 is a deficient number, since it is larger than the sum of its proper divisors (151090558).

259952642 is a wasteful number, since it uses less digits than its factorization.

259952642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881.

The product of its digits is 388800, while the sum is 44.

The square root of 259952642 is about 16123.0469204800. The cubic root of 259952642 is about 638.2116759126.

The spelling of 259952642 in words is "two hundred fifty-nine million, nine hundred fifty-two thousand, six hundred forty-two".