667231488 has 216 divisors, whose sum is σ = 2399132736. Its totient is φ = 173260800.

The previous prime is 667231483. The next prime is 667231501. The reversal of 667231488 is 884132766.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667231483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175528 + ... + 179288.

It is an arithmetic number, because the mean of its divisors is an integer number (11107096).

Almost surely, 2^667231488 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 667231488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199566368).

667231488 is an abundant number, since it is smaller than the sum of its proper divisors (1731901248).

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

667231488 is a wasteful number, since it uses less digits than its factorization.

667231488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3784 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 667231488 is about 25830.8243770887. The cubic root of 667231488 is about 873.8271035374.

The spelling of 667231488 in words is "six hundred sixty-seven million, two hundred thirty-one thousand, four hundred eighty-eight".