671444088 has 64 divisors (see below), whose sum is σ = 1938236160. Its totient is φ = 189858816.

The previous prime is 671444077. The next prime is 671444099. The reversal of 671444088 is 880444176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (671444077) and next prime (671444099).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4306 + ... + 36897.

It is an arithmetic number, because the mean of its divisors is an integer number (30284940).

Almost surely, 2^671444088 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 671444088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969118080).

671444088 is an abundant number, since it is smaller than the sum of its proper divisors (1266792072).

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

671444088 is a wasteful number, since it uses less digits than its factorization.

671444088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41316 (or 41312 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 671444088 is about 25912.2381897049. The cubic root of 671444088 is about 875.6622308644.

The spelling of 671444088 in words is "six hundred seventy-one million, four hundred forty-four thousand, eighty-eight".