258709268 has 12 divisors (see below), whose sum is σ = 452879700. Its totient is φ = 129315072.

The previous prime is 258709259. The next prime is 258709289. The reversal of 258709268 is 862907852.

It can be written as a sum of positive squares in 2 ways, for example, as 114661264 + 144048004 = 10708^2 + 12002^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8708 + ... + 24356.

It is an arithmetic number, because the mean of its divisors is an integer number (37739975).

Almost surely, 2^258709268 is an apocalyptic number.

It is an amenable number.

258709268 is a deficient number, since it is larger than the sum of its proper divisors (194170432).

258709268 is a wasteful number, since it uses less digits than its factorization.

258709268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19786 (or 19784 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 258709268 is about 16084.4417994533. The cubic root of 258709268 is about 637.1925103288.

The spelling of 258709268 in words is "two hundred fifty-eight million, seven hundred nine thousand, two hundred sixty-eight".