258290739 has 12 divisors (see below), whose sum is σ = 426384816. Its totient is φ = 147594672.

The previous prime is 258290719. The next prime is 258290743. The reversal of 258290739 is 937092852.

It is not a de Polignac number, because 258290739 - 2¹² = 258286643 is a prime.

It is a super-2 number, since 2×258290739² = 133428211706332242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258290694 and 258290703.

It is not an unprimeable number, because it can be changed into a prime (258290719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2049864 + ... + 2049989.

It is an arithmetic number, because the mean of its divisors is an integer number (35532068).

Almost surely, 2^258290739 is an apocalyptic number.

258290739 is a deficient number, since it is larger than the sum of its proper divisors (168094077).

258290739 is a wasteful number, since it uses less digits than its factorization.

258290739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099866 (or 4099863 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 258290739 is about 16071.4261657141. The cubic root of 258290739 is about 636.8487171004.

The spelling of 258290739 in words is "two hundred fifty-eight million, two hundred ninety thousand, seven hundred thirty-nine".