669260 has 24 divisors (see below), whose sum is σ = 1422960. Its totient is φ = 264384.

The previous prime is 669247. The next prime is 669271. The reversal of 669260 is 62966.

It is a happy number.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669260.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2027 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (59290).

2⁶⁶⁹²⁶⁰ is an apocalyptic number.

It is an amenable number.

669260 is an abundant number, since it is smaller than the sum of its proper divisors (753700).

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

669260 is a wasteful number, since it uses less digits than its factorization.

669260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 669260 is about 818.0831253607. The cubic root of 669260 is about 87.4711741782.

It can be divided in two parts, 669 and 260, that added together give a palindrome (929).

The spelling of 669260 in words is "six hundred sixty-nine thousand, two hundred sixty".