404023043140 has 12 divisors (see below), whose sum is σ = 848448390636. Its totient is φ = 161609217248.

The previous prime is 404023043101. The next prime is 404023043143. The reversal of 404023043140 is 41340320404.

It can be written as a sum of positive squares in 2 ways, for example, as 249838026244 + 154185016896 = 499838^2 + 392664^2 .

It is not an unprimeable number, because it can be changed into a prime (404023043143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100576059 + ... + 10100576098.

It is an arithmetic number, because the mean of its divisors is an integer number (70704032553).

Almost surely, 2^404023043140 is an apocalyptic number.

It is an amenable number.

404023043140 is an abundant number, since it is smaller than the sum of its proper divisors (444425347496).

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

404023043140 is a wasteful number, since it uses less digits than its factorization.

404023043140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201152166 (or 20201152164 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 404023043140 its reverse (41340320404), we get a palindrome (445363363544).

The spelling of 404023043140 in words is "four hundred four billion, twenty-three million, forty-three thousand, one hundred forty".