669301228 has 12 divisors (see below), whose sum is σ = 1171854040. Its totient is φ = 334485792.

The previous prime is 669301223. The next prime is 669301229. The reversal of 669301228 is 822103966.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (669301223) 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, 31833 + ... + 48496.

Almost surely, 2^669301228 is an apocalyptic number.

It is an amenable number.

669301228 is a deficient number, since it is larger than the sum of its proper divisors (502552812).

669301228 is a wasteful number, since it uses less digits than its factorization.

669301228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82416 (or 82414 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 669301228 is about 25870.8567310787. The cubic root of 669301228 is about 874.7297028510.

The spelling of 669301228 in words is "six hundred sixty-nine million, three hundred one thousand, two hundred twenty-eight".