628004284 has 12 divisors (see below), whose sum is σ = 1099191744. Its totient is φ = 313949504.

The previous prime is 628004269. The next prime is 628004291. The reversal of 628004284 is 482400826.

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 3 ways as a sum of consecutive naturals, for example, 27957 + ... + 45139.

It is an arithmetic number, because the mean of its divisors is an integer number (91599312).

Almost surely, 2^628004284 is an apocalyptic number.

It is an amenable number.

628004284 is a deficient number, since it is larger than the sum of its proper divisors (471187460).

628004284 is a wasteful number, since it uses less digits than its factorization.

628004284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26324 (or 26322 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 628004284 is about 25060.0136472429. The cubic root of 628004284 is about 856.3557183905.

The spelling of 628004284 in words is "six hundred twenty-eight million, four thousand, two hundred eighty-four".