628589232 has 60 divisors (see below), whose sum is σ = 1815937344. Its totient is φ = 202769280.

The previous prime is 628589209. The next prime is 628589251. The reversal of 628589232 is 232985826.

It is a happy number.

628589232 is a `hidden beast` number, since 62 + 8 + 589 + 2 + 3 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65943 + ... + 74870.

Almost surely, 2^628589232 is an apocalyptic number.

628589232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

628589232 is an abundant number, since it is smaller than the sum of its proper divisors (1187348112).

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

628589232 is a wasteful number, since it uses less digits than its factorization.

628589232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140858 (or 140849 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 628589232 is about 25071.6818741783. The cubic root of 628589232 is about 856.6215170648.

The spelling of 628589232 in words is "six hundred twenty-eight million, five hundred eighty-nine thousand, two hundred thirty-two".