409027140 has 72 divisors (see below), whose sum is σ = 1313708760. Its totient is φ = 102657024.

The previous prime is 409027127. The next prime is 409027141. The reversal of 409027140 is 41720904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3326976 + 405700164 = 1824^2 + 20142^2 .

It is not an unprimeable number, because it can be changed into a prime (409027141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63775 + ... + 69894.

It is an arithmetic number, because the mean of its divisors is an integer number (18245955).

Almost surely, 2^409027140 is an apocalyptic number.

It is an amenable number.

409027140 is an abundant number, since it is smaller than the sum of its proper divisors (904681620).

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

409027140 is a wasteful number, since it uses less digits than its factorization.

409027140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133701 (or 133696 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 409027140 is about 20224.4193983412. The cubic root of 409027140 is about 742.3078304163.

The spelling of 409027140 in words is "four hundred nine million, twenty-seven thousand, one hundred forty".