571220140 has 24 divisors (see below), whose sum is σ = 1225086912. Its totient is φ = 223626240.

The previous prime is 571220113. The next prime is 571220141. The reversal of 571220140 is 41022175.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (571220141) 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, 302901 + ... + 304780.

It is an arithmetic number, because the mean of its divisors is an integer number (51045288).

Almost surely, 2^571220140 is an apocalyptic number.

It is an amenable number.

571220140 is an abundant number, since it is smaller than the sum of its proper divisors (653866772).

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

571220140 is a wasteful number, since it uses less digits than its factorization.

571220140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607737 (or 607735 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 571220140 is about 23900.2121329498. The cubic root of 571220140 is about 829.7256266374.

It can be divided in two parts, 5712 and 20140, that added together give a palindrome (25852).

The spelling of 571220140 in words is "five hundred seventy-one million, two hundred twenty thousand, one hundred forty".