669207422 has 16 divisors (see below), whose sum is σ = 1118305440. Its totient is φ = 298214112.

The previous prime is 669207373. The next prime is 669207433. The reversal of 669207422 is 224702966.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 443018 + ... + 444525.

It is an arithmetic number, because the mean of its divisors is an integer number (69894090).

Almost surely, 2^669207422 is an apocalyptic number.

669207422 is a deficient number, since it is larger than the sum of its proper divisors (449098018).

669207422 is a wasteful number, since it uses less digits than its factorization.

669207422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887587.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 669207422 is about 25869.0437009179. The cubic root of 669207422 is about 874.6888349902.

The spelling of 669207422 in words is "six hundred sixty-nine million, two hundred seven thousand, four hundred twenty-two".