671130432 has 168 divisors, whose sum is σ = 2294388096. Its totient is φ = 183389184.

The previous prime is 671130431. The next prime is 671130433. The reversal of 671130432 is 234031176.

It is an interprime number because it is at equal distance from previous prime (671130431) and next prime (671130433).

It is a tau number, because it is divible by the number of its divisors (168).

It is a junction number, because it is equal to n+sod(n) for n = 671130396 and 671130405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671130431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89118 + ... + 96354.

It is an arithmetic number, because the mean of its divisors is an integer number (13657072).

Almost surely, 2^671130432 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 671130432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147194048).

671130432 is an abundant number, since it is smaller than the sum of its proper divisors (1623257664).

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

671130432 is a wasteful number, since it uses less digits than its factorization.

671130432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7272 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 671130432 is about 25906.1852073979. The cubic root of 671130432 is about 875.5258583820.

The spelling of 671130432 in words is "six hundred seventy-one million, one hundred thirty thousand, four hundred thirty-two".