258426682 has 4 divisors (see below), whose sum is σ = 387640026. Its totient is φ = 129213340.

The previous prime is 258426677. The next prime is 258426697. The reversal of 258426682 is 286624852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 241460521 + 16966161 = 15539^2 + 4119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64606669 + ... + 64606672.

Almost surely, 2^258426682 is an apocalyptic number.

258426682 is a deficient number, since it is larger than the sum of its proper divisors (129213344).

258426682 is a wasteful number, since it uses less digits than its factorization.

258426682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129213343.

The product of its digits is 368640, while the sum is 43.

The square root of 258426682 is about 16075.6549477774. The cubic root of 258426682 is about 636.9604257654.

The spelling of 258426682 in words is "two hundred fifty-eight million, four hundred twenty-six thousand, six hundred eighty-two".