669046280 has 32 divisors (see below), whose sum is σ = 1720405440. Its totient is φ = 229387200.

The previous prime is 669046229. The next prime is 669046289. The reversal of 669046280 is 82640966.

It is not an unprimeable number, because it can be changed into a prime (669046289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194446 + ... + 1195005.

It is an arithmetic number, because the mean of its divisors is an integer number (53762670).

Almost surely, 2^669046280 is an apocalyptic number.

It is an amenable number.

669046280 is an abundant number, since it is smaller than the sum of its proper divisors (1051359160).

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

669046280 is a wasteful number, since it uses less digits than its factorization.

669046280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389469 (or 2389465 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 669046280 is about 25865.9289413700. The cubic root of 669046280 is about 874.6186223683.

The spelling of 669046280 in words is "six hundred sixty-nine million, forty-six thousand, two hundred eighty".