664050 has 48 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 167040.

The previous prime is 664043. The next prime is 664061. The reversal of 664050 is 50466.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 664050.

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, 2734 + ... + 2966.

It is an arithmetic number, because the mean of its divisors is an integer number (36270).

2⁶⁶⁴⁰⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870480).

664050 is an abundant number, since it is smaller than the sum of its proper divisors (1076910).

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

664050 is a wasteful number, since it uses less digits than its factorization.

664050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 664050 is about 814.8926309643. The cubic root of 664050 is about 87.2436031686.

The spelling of 664050 in words is "six hundred sixty-four thousand, fifty".