671642324 has 48 divisors (see below), whose sum is σ = 1323241920. Its totient is φ = 296409600.

The previous prime is 671642287. The next prime is 671642347. The reversal of 671642324 is 423246176.

It is a super-2 number, since 2×671642324² = 902206822776241952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 127919 + ... + 133065.

It is an arithmetic number, because the mean of its divisors is an integer number (27567540).

Almost surely, 2^671642324 is an apocalyptic number.

It is an amenable number.

671642324 is a deficient number, since it is larger than the sum of its proper divisors (651599596).

671642324 is a wasteful number, since it uses less digits than its factorization.

671642324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288 (or 5286 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 671642324 is about 25916.0630497767. The cubic root of 671642324 is about 875.7483987229.

The spelling of 671642324 in words is "six hundred seventy-one million, six hundred forty-two thousand, three hundred twenty-four".