258480721 has 8 divisors (see below), whose sum is σ = 259966880. Its totient is φ = 256999392.

The previous prime is 258480701. The next prime is 258480727. The reversal of 258480721 is 127084852.

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

It is a cyclic number.

It is not a de Polignac number, because 258480721 - 2⁵ = 258480689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258480727) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 162910 + ... + 164488.

It is an arithmetic number, because the mean of its divisors is an integer number (32495860).

Almost surely, 2^258480721 is an apocalyptic number.

It is an amenable number.

258480721 is a deficient number, since it is larger than the sum of its proper divisors (1486159).

258480721 is a wasteful number, since it uses less digits than its factorization.

258480721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 258480721 is about 16077.3356312543. The cubic root of 258480721 is about 637.0048204402.

The spelling of 258480721 in words is "two hundred fifty-eight million, four hundred eighty thousand, seven hundred twenty-one".