4015431140 has 96 divisors (see below), whose sum is σ = 9840703488. Its totient is φ = 1347840000.

The previous prime is 4015431131. The next prime is 4015431143. The reversal of 4015431140 is 411345104.

It is a super-2 number, since 2×4015431140² = 32247374480163399200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4015431143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2057165 + ... + 2059115.

It is an arithmetic number, because the mean of its divisors is an integer number (102507328).

Almost surely, 2^4015431140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4015431140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4920351744).

4015431140 is an abundant number, since it is smaller than the sum of its proper divisors (5825272348).

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

4015431140 is a wasteful number, since it uses less digits than its factorization.

4015431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4015431140 is about 63367.4296464674. The cubic root of 4015431140 is about 1589.4397166238.

Adding to 4015431140 its reverse (411345104), we get a palindrome (4426776244).

The spelling of 4015431140 in words is "four billion, fifteen million, four hundred thirty-one thousand, one hundred forty".