258444474 has 8 divisors (see below), whose sum is σ = 516888960. Its totient is φ = 86148156.

The previous prime is 258444401. The next prime is 258444481. The reversal of 258444474 is 474444852.

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

258444474 is an admirable number.

It is a super-2 number, since 2×258444474² = 133587092282273352, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 21537034 + ... + 21537045.

It is an arithmetic number, because the mean of its divisors is an integer number (64611120).

Almost surely, 2^258444474 is an apocalyptic number.

258444474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258444474 is a wasteful number, since it uses less digits than its factorization.

258444474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43074084.

The product of its digits is 573440, while the sum is 42.

The square root of 258444474 is about 16076.2083216161. The cubic root of 258444474 is about 636.9750431155.

The spelling of 258444474 in words is "two hundred fifty-eight million, four hundred forty-four thousand, four hundred seventy-four".