628557048 has 96 divisors (see below), whose sum is σ = 2060004960. Its totient is φ = 169021440.

The previous prime is 628557047. The next prime is 628557053. The reversal of 628557048 is 840755826.

628557048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 628556994 and 628557012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628557047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28113 + ... + 45248.

It is an arithmetic number, because the mean of its divisors is an integer number (21458385).

Almost surely, 2^628557048 is an apocalyptic number.

628557048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

628557048 is an abundant number, since it is smaller than the sum of its proper divisors (1431447912).

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

628557048 is a wasteful number, since it uses less digits than its factorization.

628557048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73397 (or 73390 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 628557048 is about 25071.0400262933. The cubic root of 628557048 is about 856.6068970363.

The spelling of 628557048 in words is "six hundred twenty-eight million, five hundred fifty-seven thousand, forty-eight".