259942969 has 32 divisors (see below), whose sum is σ = 313342848. Its totient is φ = 214315200.

The previous prime is 259942961. The next prime is 259942997. The reversal of 259942969 is 969249952.

It is a happy number.

It is not a de Polignac number, because 259942969 - 2³ = 259942961 is a prime.

It is a super-2 number, since 2×259942969² = 135140694265069922, which contains 22 as substring.

Its product of digits (3149280) is a multiple of the sum of its prime divisors (288).

It is not an unprimeable number, because it can be changed into a prime (259942961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436059 + ... + 1436239.

It is an arithmetic number, because the mean of its divisors is an integer number (9791964).

Almost surely, 2^259942969 is an apocalyptic number.

It is an amenable number.

259942969 is a deficient number, since it is larger than the sum of its proper divisors (53399879).

259942969 is a wasteful number, since it uses less digits than its factorization.

259942969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 288 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The square root of 259942969 is about 16122.7469433717. The cubic root of 259942969 is about 638.2037597295.

The spelling of 259942969 in words is "two hundred fifty-nine million, nine hundred forty-two thousand, nine hundred sixty-nine".