4131440978 has 48 divisors (see below), whose sum is σ = 7850131200. Its totient is φ = 1619563680.

The previous prime is 4131440977. The next prime is 4131440981. The reversal of 4131440978 is 8790441314.

It is not an unprimeable number, because it can be changed into a prime (4131440977) 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, 15743 + ... + 92253.

It is an arithmetic number, because the mean of its divisors is an integer number (163544400).

Almost surely, 2^4131440978 is an apocalyptic number.

4131440978 is a deficient number, since it is larger than the sum of its proper divisors (3718690222).

4131440978 is a wasteful number, since it uses less digits than its factorization.

4131440978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76575 (or 76568 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 4131440978 is about 64276.2862804005. The cubic root of 4131440978 is about 1604.6014645684.

The spelling of 4131440978 in words is "four billion, one hundred thirty-one million, four hundred forty thousand, nine hundred seventy-eight".