669226028 has 12 divisors (see below), whose sum is σ = 1198381800. Its totient is φ = 326831232.

The previous prime is 669226027. The next prime is 669226057. The reversal of 669226028 is 820622966.

669226028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (669226027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945253 + ... + 1945596.

It is an arithmetic number, because the mean of its divisors is an integer number (99865150).

Almost surely, 2^669226028 is an apocalyptic number.

It is an amenable number.

669226028 is a deficient number, since it is larger than the sum of its proper divisors (529155772).

669226028 is a wasteful number, since it uses less digits than its factorization.

669226028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890896 (or 3890894 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 669226028 is about 25869.4033174327. The cubic root of 669226028 is about 874.6969412509.

The spelling of 669226028 in words is "six hundred sixty-nine million, two hundred twenty-six thousand, twenty-eight".