620443243 has 12 divisors (see below), whose sum is σ = 726071472. Its totient is φ = 528617040.

The previous prime is 620443231. The next prime is 620443267. The reversal of 620443243 is 342344026.

It is not a de Polignac number, because 620443243 - 2⁹ = 620442731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620443843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29728 + ... + 46093.

It is an arithmetic number, because the mean of its divisors is an integer number (60505956).

Almost surely, 2^620443243 is an apocalyptic number.

620443243 is a deficient number, since it is larger than the sum of its proper divisors (105628229).

620443243 is a wasteful number, since it uses less digits than its factorization.

620443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76002 (or 75995 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 620443243 is about 24908.6981394050. The cubic root of 620443243 is about 852.9050510786.

Adding to 620443243 its reverse (342344026), we get a palindrome (962787269).

The spelling of 620443243 in words is "six hundred twenty million, four hundred forty-three thousand, two hundred forty-three".