671377040 has 40 divisors (see below), whose sum is σ = 1579773888. Its totient is φ = 265312640.

The previous prime is 671377037. The next prime is 671377043. The reversal of 671377040 is 40773176.

It is an interprime number because it is at equal distance from previous prime (671377037) and next prime (671377043).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (671377043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43916 + ... + 57195.

Almost surely, 2^671377040 is an apocalyptic number.

It is an amenable number.

671377040 is an abundant number, since it is smaller than the sum of its proper divisors (908396848).

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

671377040 is a wasteful number, since it uses less digits than its factorization.

671377040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101207 (or 101201 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 671377040 is about 25910.9444057912. The cubic root of 671377040 is about 875.6330830635.

The spelling of 671377040 in words is "six hundred seventy-one million, three hundred seventy-seven thousand, forty".