259209942 has 16 divisors (see below), whose sum is σ = 518579712. Its totient is φ = 86376680.

The previous prime is 259209911. The next prime is 259209947. The reversal of 259209942 is 249902952.

It is a junction number, because it is equal to n+sod(n) for n = 259209894 and 259209903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259209947) 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, 29683 + ... + 37409.

It is an arithmetic number, because the mean of its divisors is an integer number (32411232).

Almost surely, 2^259209942 is an apocalyptic number.

259209942 is an abundant number, since it is smaller than the sum of its proper divisors (259369770).

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

259209942 is a wasteful number, since it uses less digits than its factorization.

259209942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13323.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 259209942 is about 16099.9981987577. The cubic root of 259209942 is about 637.6032933741.

The spelling of 259209942 in words is "two hundred fifty-nine million, two hundred nine thousand, nine hundred forty-two".