628323032 has 16 divisors (see below), whose sum is σ = 1206840600. Its totient is φ = 306498880.

The previous prime is 628322987. The next prime is 628323041. The reversal of 628323032 is 230323826.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 628322986 and 628323004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957482 + ... + 958137.

Almost surely, 2^628323032 is an apocalyptic number.

It is an amenable number.

628323032 is a deficient number, since it is larger than the sum of its proper divisors (578517568).

628323032 is a wasteful number, since it uses less digits than its factorization.

628323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915666 (or 1915662 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 628323032 is about 25066.3725337353. The cubic root of 628323032 is about 856.5005770118.

Adding to 628323032 its reverse (230323826), we get a palindrome (858646858).

The spelling of 628323032 in words is "six hundred twenty-eight million, three hundred twenty-three thousand, thirty-two".