628468136 has 16 divisors (see below), whose sum is σ = 1187658240. Its totient is φ = 311759280.

The previous prime is 628468129. The next prime is 628468151. The reversal of 628468136 is 631864826.

628468136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 308270 + ... + 310301.

It is an arithmetic number, because the mean of its divisors is an integer number (74228640).

Almost surely, 2^628468136 is an apocalyptic number.

It is an amenable number.

628468136 is a deficient number, since it is larger than the sum of its proper divisors (559190104).

628468136 is a wasteful number, since it uses less digits than its factorization.

628468136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618704 (or 618700 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 628468136 is about 25069.2667623128. The cubic root of 628468136 is about 856.5665049329.

The spelling of 628468136 in words is "six hundred twenty-eight million, four hundred sixty-eight thousand, one hundred thirty-six".