669508430 has 16 divisors (see below), whose sum is σ = 1207288800. Its totient is φ = 267320352.

The previous prime is 669508429. The next prime is 669508439. The reversal of 669508430 is 34805966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669508439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54530 + ... + 65669.

It is an arithmetic number, because the mean of its divisors is an integer number (75455550).

Almost surely, 2^669508430 is an apocalyptic number.

669508430 is a deficient number, since it is larger than the sum of its proper divisors (537780370).

669508430 is a wasteful number, since it uses less digits than its factorization.

669508430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120763.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 669508430 is about 25874.8609658100. The cubic root of 669508430 is about 874.8199596921.

The spelling of 669508430 in words is "six hundred sixty-nine million, five hundred eight thousand, four hundred thirty".