620246444 has 6 divisors (see below), whose sum is σ = 1085431284. Its totient is φ = 310123220.

The previous prime is 620246443. The next prime is 620246447. The reversal of 620246444 is 444642026.

620246444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 620246444.

It is not an unprimeable number, because it can be changed into a prime (620246441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77530802 + ... + 77530809.

It is an arithmetic number, because the mean of its divisors is an integer number (180905214).

Almost surely, 2^620246444 is an apocalyptic number.

It is an amenable number.

620246444 is a deficient number, since it is larger than the sum of its proper divisors (465184840).

620246444 is a wasteful number, since it uses less digits than its factorization.

620246444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155061615 (or 155061613 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 620246444 is about 24904.7474189159. The cubic root of 620246444 is about 852.8148636128.

The spelling of 620246444 in words is "six hundred twenty million, two hundred forty-six thousand, four hundred forty-four".