669037306 has 16 divisors (see below), whose sum is σ = 1151390016. Its totient is φ = 285613056.

The previous prime is 669037289. The next prime is 669037309. The reversal of 669037306 is 603730966.

It is a super-2 number, since 2×669037306² = 895221833639475272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (669037309) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 89376 + ... + 96571.

It is an arithmetic number, because the mean of its divisors is an integer number (71961876).

Almost surely, 2^669037306 is an apocalyptic number.

669037306 is a deficient number, since it is larger than the sum of its proper divisors (482352710).

669037306 is a wasteful number, since it uses less digits than its factorization.

669037306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186213.

The product of its (nonzero) digits is 122472, while the sum is 40.

The square root of 669037306 is about 25865.7554693460. The cubic root of 669037306 is about 874.6147118951.

The spelling of 669037306 in words is "six hundred sixty-nine million, thirty-seven thousand, three hundred six".