4040020535 has 8 divisors (see below), whose sum is σ = 4848732816. Its totient is φ = 3231544320.

The previous prime is 4040020529. The next prime is 4040020561. The reversal of 4040020535 is 5350200404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4040020535 - 2¹⁸ = 4039758391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4040020535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18881 + ... + 91850.

It is an arithmetic number, because the mean of its divisors is an integer number (606091602).

Almost surely, 2^4040020535 is an apocalyptic number.

4040020535 is a deficient number, since it is larger than the sum of its proper divisors (808712281).

4040020535 is a wasteful number, since it uses less digits than its factorization.

4040020535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118033.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4040020535 is about 63561.1558658274. The cubic root of 4040020535 is about 1592.6775468333.

Adding to 4040020535 its reverse (5350200404), we get a palindrome (9390220939).

The spelling of 4040020535 in words is "four billion, forty million, twenty thousand, five hundred thirty-five".