669140324 has 24 divisors (see below), whose sum is σ = 1185632448. Its totient is φ = 330406560.

The previous prime is 669140237. The next prime is 669140327. The reversal of 669140324 is 423041966.

It is not an unprimeable number, because it can be changed into a prime (669140327) 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, 161519 + ... + 165609.

It is an arithmetic number, because the mean of its divisors is an integer number (49401352).

Almost surely, 2^669140324 is an apocalyptic number.

It is an amenable number.

669140324 is a deficient number, since it is larger than the sum of its proper divisors (516492124).

669140324 is a wasteful number, since it uses less digits than its factorization.

669140324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595 (or 4593 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 669140324 is about 25867.7467901632. The cubic root of 669140324 is about 874.6596004902.

The spelling of 669140324 in words is "six hundred sixty-nine million, one hundred forty thousand, three hundred twenty-four".