258494542 has 4 divisors (see below), whose sum is σ = 387741816. Its totient is φ = 129247270.

The previous prime is 258494531. The next prime is 258494567. The reversal of 258494542 is 245494852.

258494542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64623634 + ... + 64623637.

It is an arithmetic number, because the mean of its divisors is an integer number (96935454).

Almost surely, 2^258494542 is an apocalyptic number.

258494542 is a deficient number, since it is larger than the sum of its proper divisors (129247274).

258494542 is a wasteful number, since it uses less digits than its factorization.

258494542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129247273.

The product of its digits is 460800, while the sum is 43.

The square root of 258494542 is about 16077.7654541917. The cubic root of 258494542 is about 637.0161738165.

The spelling of 258494542 in words is "two hundred fifty-eight million, four hundred ninety-four thousand, five hundred forty-two".