628004222 has 8 divisors (see below), whose sum is σ = 974489400. Its totient is φ = 303174424.

The previous prime is 628004147. The next prime is 628004243. The reversal of 628004222 is 222400826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 628004191 and 628004200.

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, 5413772 + ... + 5413887.

It is an arithmetic number, because the mean of its divisors is an integer number (121811175).

Almost surely, 2^628004222 is an apocalyptic number.

628004222 is a deficient number, since it is larger than the sum of its proper divisors (346485178).

628004222 is a wasteful number, since it uses less digits than its factorization.

628004222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10827690.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 628004222 is about 25060.0124102124. The cubic root of 628004222 is about 856.3556902091.

The spelling of 628004222 in words is "six hundred twenty-eight million, four thousand, two hundred twenty-two".