669422058 has 32 divisors (see below), whose sum is σ = 1375266816. Its totient is φ = 217151088.

The previous prime is 669422027. The next prime is 669422071. The reversal of 669422058 is 850224966.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23335 + ... + 43397.

It is an arithmetic number, because the mean of its divisors is an integer number (42977088).

Almost surely, 2^669422058 is an apocalyptic number.

669422058 is an abundant number, since it is smaller than the sum of its proper divisors (705844758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669422058 is a wasteful number, since it uses less digits than its factorization.

669422058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20218.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 669422058 is about 25873.1918788541. The cubic root of 669422058 is about 874.7823384585.

The spelling of 669422058 in words is "six hundred sixty-nine million, four hundred twenty-two thousand, fifty-eight".