628571252 has 24 divisors (see below), whose sum is σ = 1147211520. Its totient is φ = 301006080.

The previous prime is 628571233. The next prime is 628571261. The reversal of 628571252 is 252175826.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14102 + ... + 38157.

It is an arithmetic number, because the mean of its divisors is an integer number (47800480).

Almost surely, 2^628571252 is an apocalyptic number.

628571252 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

628571252 is a deficient number, since it is larger than the sum of its proper divisors (518640268).

628571252 is a wasteful number, since it uses less digits than its factorization.

628571252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52391 (or 52389 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 628571252 is about 25071.3232997383. The cubic root of 628571252 is about 856.6133494619.

The spelling of 628571252 in words is "six hundred twenty-eight million, five hundred seventy-one thousand, two hundred fifty-two".