667495224 has 144 divisors (see below), whose sum is σ = 2040138360. Its totient is φ = 195523200.

The previous prime is 667495219. The next prime is 667495229. The reversal of 667495224 is 422594766.

667495224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (667495219) and next prime (667495229).

It is a self number, because there is not a number n which added to its sum of digits gives 667495224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667495229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 760674 + ... + 761550.

Almost surely, 2^667495224 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 667495224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020069180).

667495224 is an abundant number, since it is smaller than the sum of its proper divisors (1372643136).

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

667495224 is a wasteful number, since it uses less digits than its factorization.

667495224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 924 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 667495224 is about 25835.9289362701. The cubic root of 667495224 is about 873.9422206601.

The spelling of 667495224 in words is "six hundred sixty-seven million, four hundred ninety-five thousand, two hundred twenty-four".