628443932 has 6 divisors (see below), whose sum is σ = 1099776888. Its totient is φ = 314221964.

The previous prime is 628443931. The next prime is 628443971. The reversal of 628443932 is 239344826.

It is a happy number.

628443932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 628443932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628443931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78555488 + ... + 78555495.

It is an arithmetic number, because the mean of its divisors is an integer number (183296148).

Almost surely, 2^628443932 is an apocalyptic number.

It is an amenable number.

628443932 is a deficient number, since it is larger than the sum of its proper divisors (471332956).

628443932 is a wasteful number, since it uses less digits than its factorization.

628443932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157110987 (or 157110985 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 628443932 is about 25068.7840151851. The cubic root of 628443932 is about 856.5555085643. Note that the first 4 decimals are identical.

The spelling of 628443932 in words is "six hundred twenty-eight million, four hundred forty-three thousand, nine hundred thirty-two".