620857048 has 48 divisors (see below), whose sum is σ = 1385695080. Its totient is φ = 259886592.

The previous prime is 620857033. The next prime is 620857073. The reversal of 620857048 is 840758026.

It is a self number, because there is not a number n which added to its sum of digits gives 620857048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1561 + ... + 35272.

Almost surely, 2^620857048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620857048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692847540).

620857048 is an abundant number, since it is smaller than the sum of its proper divisors (764838032).

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

620857048 is a wasteful number, since it uses less digits than its factorization.

620857048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36896 (or 36885 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 620857048 is about 24917.0031905926. The cubic root of 620857048 is about 853.0946241212.

The spelling of 620857048 in words is "six hundred twenty million, eight hundred fifty-seven thousand, forty-eight".