57981458 has 16 divisors (see below), whose sum is σ = 94232160. Its totient is φ = 26650176.

The previous prime is 57981457. The next prime is 57981461. The reversal of 57981458 is 85418975.

57981458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57981457) 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, 18368 + ... + 21291.

It is an arithmetic number, because the mean of its divisors is an integer number (5889510).

Almost surely, 2^57981458 is an apocalyptic number.

57981458 is a deficient number, since it is larger than the sum of its proper divisors (36250702).

57981458 is a wasteful number, since it uses less digits than its factorization.

57981458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39721.

The product of its digits is 403200, while the sum is 47.

The square root of 57981458 is about 7614.5556666164. Note that the first 3 decimals coincide. The cubic root of 57981458 is about 387.0464103591.

The spelling of 57981458 in words is "fifty-seven million, nine hundred eighty-one thousand, four hundred fifty-eight".