671140590 has 32 divisors (see below), whose sum is σ = 1641132576. Its totient is φ = 175593600.

The previous prime is 671140583. The next prime is 671140597. The reversal of 671140590 is 95041176.

It is an interprime number because it is at equal distance from previous prime (671140583) and next prime (671140597).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671140597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209461 + ... + 212640.

It is an arithmetic number, because the mean of its divisors is an integer number (51285393).

Almost surely, 2^671140590 is an apocalyptic number.

671140590 is an abundant number, since it is smaller than the sum of its proper divisors (969991986).

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

671140590 is a wasteful number, since it uses less digits than its factorization.

671140590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422164.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 671140590 is about 25906.3812602224. The cubic root of 671140590 is about 875.5302755794.

The spelling of 671140590 in words is "six hundred seventy-one million, one hundred forty thousand, five hundred ninety".