669574000 has 40 divisors (see below), whose sum is σ = 1619034768. Its totient is φ = 267828800.

The previous prime is 669573997. The next prime is 669574001. The reversal of 669574000 is 475966.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669574001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165394 + ... + 169393.

Almost surely, 2^669574000 is an apocalyptic number.

It is an amenable number.

669574000 is an abundant number, since it is smaller than the sum of its proper divisors (949460768).

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

669574000 is a wasteful number, since it uses less digits than its factorization.

669574000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334810 (or 334794 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 669574000 is about 25876.1279947368. The cubic root of 669574000 is about 874.8485179943.

The spelling of 669574000 in words is "six hundred sixty-nine million, five hundred seventy-four thousand".