620450041 has 4 divisors (see below), whose sum is σ = 641844900. Its totient is φ = 599055184.

The previous prime is 620450029. The next prime is 620450063. The reversal of 620450041 is 140054026.

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

It can be written as a sum of positive squares in 2 ways, for example, as 420086016 + 200364025 = 20496^2 + 14155^2 .

It is a cyclic number.

It is not a de Polignac number, because 620450041 - 2⁷ = 620449913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620449994 and 620450021.

It is not an unprimeable number, because it can be changed into a prime (620450011) by changing a digit.

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, 10697386 + ... + 10697443.

It is an arithmetic number, because the mean of its divisors is an integer number (160461225).

Almost surely, 2^620450041 is an apocalyptic number.

It is an amenable number.

620450041 is a deficient number, since it is larger than the sum of its proper divisors (21394859).

620450041 is a wasteful number, since it uses less digits than its factorization.

620450041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21394858.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 620450041 is about 24908.8345973873. The cubic root of 620450041 is about 852.9081660707.

The spelling of 620450041 in words is "six hundred twenty million, four hundred fifty thousand, forty-one".