667481332 has 36 divisors (see below), whose sum is σ = 1395540804. Its totient is φ = 278328960.

The previous prime is 667481327. The next prime is 667481333. The reversal of 667481332 is 233184766.

It can be written as a sum of positive squares in 2 ways, for example, as 505530256 + 161951076 = 22484^2 + 12726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667481333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38769 + ... + 53272.

Almost surely, 2^667481332 is an apocalyptic number.

It is an amenable number.

667481332 is an abundant number, since it is smaller than the sum of its proper divisors (728059472).

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

667481332 is a wasteful number, since it uses less digits than its factorization.

667481332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92096 (or 92087 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 667481332 is about 25835.6600844647. The cubic root of 667481332 is about 873.9361577505.

The spelling of 667481332 in words is "six hundred sixty-seven million, four hundred eighty-one thousand, three hundred thirty-two".