658938241 has 32 divisors (see below), whose sum is σ = 774512928. Its totient is φ = 555110400.

The previous prime is 658938227. The next prime is 658938251. The reversal of 658938241 is 142839856.

It can be written as a sum of positive squares in 16 ways, for example, as 48650625 + 610287616 = 6975^2 + 24704^2 .

It is not a de Polignac number, because 658938241 - 2⁵ = 658938209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 658938191 and 658938200.

It is not an unprimeable number, because it can be changed into a prime (658938211) 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 31 ways as a sum of consecutive naturals, for example, 1182735 + ... + 1183291.

It is an arithmetic number, because the mean of its divisors is an integer number (24203529).

Almost surely, 2^658938241 is an apocalyptic number.

It is an amenable number.

658938241 is a deficient number, since it is larger than the sum of its proper divisors (115574687).

658938241 is a wasteful number, since it uses less digits than its factorization.

658938241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its digits is 414720, while the sum is 46.

The square root of 658938241 is about 25669.7923832664. The cubic root of 658938241 is about 870.1916348014.

The spelling of 658938241 in words is "six hundred fifty-eight million, nine hundred thirty-eight thousand, two hundred forty-one".