669482450 has 48 divisors (see below), whose sum is σ = 1532610240. Its totient is φ = 211878720.

The previous prime is 669482441. The next prime is 669482483. The reversal of 669482450 is 54284966.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69020 + ... + 78119.

It is an arithmetic number, because the mean of its divisors is an integer number (31929380).

Almost surely, 2^669482450 is an apocalyptic number.

669482450 is an abundant number, since it is smaller than the sum of its proper divisors (863127790).

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

669482450 is a wasteful number, since it uses less digits than its factorization.

669482450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147171 (or 147166 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 669482450 is about 25874.3589292566. The cubic root of 669482450 is about 874.8086438691.

The spelling of 669482450 in words is "six hundred sixty-nine million, four hundred eighty-two thousand, four hundred fifty".