671826132 has 72 divisors (see below), whose sum is σ = 1722913920. Its totient is φ = 220711680.

The previous prime is 671826121. The next prime is 671826139. The reversal of 671826132 is 231628176.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671826139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 971907 + ... + 972597.

It is an arithmetic number, because the mean of its divisors is an integer number (23929360).

Almost surely, 2^671826132 is an apocalyptic number.

It is an amenable number.

671826132 is an abundant number, since it is smaller than the sum of its proper divisors (1051087788).

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

671826132 is a wasteful number, since it uses less digits than its factorization.

671826132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1048 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 671826132 is about 25919.6090248291. The cubic root of 671826132 is about 875.8282799702.

The spelling of 671826132 in words is "six hundred seventy-one million, eight hundred twenty-six thousand, one hundred thirty-two".