258498994 has 8 divisors (see below), whose sum is σ = 417575340. Its totient is φ = 119307216.

The previous prime is 258498979. The next prime is 258499037. The reversal of 258498994 is 499894852.

258498994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 254243025 + 4255969 = 15945^2 + 2063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4971109 + ... + 4971160.

Almost surely, 2^258498994 is an apocalyptic number.

258498994 is a deficient number, since it is larger than the sum of its proper divisors (159076346).

258498994 is a wasteful number, since it uses less digits than its factorization.

258498994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9942284.

The product of its digits is 7464960, while the sum is 58.

The square root of 258498994 is about 16077.9039056713. The cubic root of 258498994 is about 637.0198308631.

It can be divided in two parts, 25849 and 8994, that added together give a palindrome (34843).

The spelling of 258498994 in words is "two hundred fifty-eight million, four hundred ninety-eight thousand, nine hundred ninety-four".