620442002 has 4 divisors (see below), whose sum is σ = 930663006. Its totient is φ = 310221000.

The previous prime is 620441993. The next prime is 620442007. The reversal of 620442002 is 200244026.

620442002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 600201001 + 20241001 = 24499^2 + 4499^2 .

It is not an unprimeable number, because it can be changed into a prime (620442007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155110499 + ... + 155110502.

Almost surely, 2^620442002 is an apocalyptic number.

620442002 is a deficient number, since it is larger than the sum of its proper divisors (310221004).

620442002 is a wasteful number, since it uses less digits than its factorization.

620442002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310221003.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 620442002 is about 24908.6732284158. The cubic root of 620442002 is about 852.9044824228.

Adding to 620442002 its reverse (200244026), we get a palindrome (820686028).

It can be divided in two parts, 62044 and 2002, that added together give a palindrome (64046).

The spelling of 620442002 in words is "six hundred twenty million, four hundred forty-two thousand, two".