4040031020 has 12 divisors (see below), whose sum is σ = 8484065184. Its totient is φ = 1616012400.

The previous prime is 4040030963. The next prime is 4040031049. The reversal of 4040031020 is 201300404.

It is a junction number, because it is equal to n+sod(n) for n = 4040030986 and 4040031004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101000756 + ... + 101000795.

It is an arithmetic number, because the mean of its divisors is an integer number (707005432).

Almost surely, 2^4040031020 is an apocalyptic number.

It is an amenable number.

4040031020 is an abundant number, since it is smaller than the sum of its proper divisors (4444034164).

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

4040031020 is a wasteful number, since it uses less digits than its factorization.

4040031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202001560 (or 202001558 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4040031020 is about 63561.2383453941. The cubic root of 4040031020 is about 1592.6789246489.

Adding to 4040031020 its reverse (201300404), we get a palindrome (4241331424).

The spelling of 4040031020 in words is "four billion, forty million, thirty-one thousand, twenty".