4001540534 has 16 divisors (see below), whose sum is σ = 6038323200. Its totient is φ = 1988782440.

The previous prime is 4001540531. The next prime is 4001540537. The reversal of 4001540534 is 4350451004.

It is an interprime number because it is at equal distance from previous prime (4001540531) and next prime (4001540537).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001540531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632117 + ... + 638415.

It is an arithmetic number, because the mean of its divisors is an integer number (377395200).

Almost surely, 2^4001540534 is an apocalyptic number.

4001540534 is a deficient number, since it is larger than the sum of its proper divisors (2036782666).

4001540534 is a wasteful number, since it uses less digits than its factorization.

4001540534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4001540534 is about 63257.7310215913. The cubic root of 4001540534 is about 1587.6048129197.

Adding to 4001540534 its reverse (4350451004), we get a palindrome (8351991538).

The spelling of 4001540534 in words is "four billion, one million, five hundred forty thousand, five hundred thirty-four".