620444230044 has 48 divisors (see below), whose sum is σ = 1544773466880. Its totient is φ = 193245782400.

The previous prime is 620444230033. The next prime is 620444230073. The reversal of 620444230044 is 440032444026.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 620444229987 and 620444230014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18622032 + ... + 18655319.

It is an arithmetic number, because the mean of its divisors is an integer number (32182780560).

Almost surely, 2^620444230044 is an apocalyptic number.

It is an amenable number.

620444230044 is an abundant number, since it is smaller than the sum of its proper divisors (924329236836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620444230044 is a wasteful number, since it uses less digits than its factorization.

620444230044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37277450 (or 37277448 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

The spelling of 620444230044 in words is "six hundred twenty billion, four hundred forty-four million, two hundred thirty thousand, forty-four".