671010440 has 32 divisors (see below), whose sum is σ = 1518131160. Its totient is φ = 266918400.

The previous prime is 671010377. The next prime is 671010443. The reversal of 671010440 is 44010176.

It can be written as a sum of positive squares in 4 ways, for example, as 217916644 + 453093796 = 14762^2 + 21286^2 .

It is not an unprimeable number, because it can be changed into a prime (671010443) 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, 39101 + ... + 53580.

Almost surely, 2^671010440 is an apocalyptic number.

It is an amenable number.

671010440 is an abundant number, since it is smaller than the sum of its proper divisors (847120720).

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

671010440 is a wasteful number, since it uses less digits than its factorization.

671010440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92873 (or 92869 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 671010440 is about 25903.8692090583. The cubic root of 671010440 is about 875.4736765927.

The spelling of 671010440 in words is "six hundred seventy-one million, ten thousand, four hundred forty".