669276800 has 96 divisors (see below), whose sum is σ = 1663212000. Its totient is φ = 266112000.

The previous prime is 669276787. The next prime is 669276809. The reversal of 669276800 is 8672966.

It is not an unprimeable number, because it can be changed into a prime (669276809) 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 11 ways as a sum of consecutive naturals, for example, 636275 + ... + 637325.

It is an arithmetic number, because the mean of its divisors is an integer number (17325125).

Almost surely, 2^669276800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669276800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831606000).

669276800 is an abundant number, since it is smaller than the sum of its proper divisors (993935200).

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

669276800 is a wasteful number, since it uses less digits than its factorization.

669276800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 669276800 is about 25870.3846125256. The cubic root of 669276800 is about 874.7190608280.

It can be divided in two parts, 669276 and 800, that added together give a palindrome (670076).

The spelling of 669276800 in words is "six hundred sixty-nine million, two hundred seventy-six thousand, eight hundred".