4020013205 has 64 divisors (see below), whose sum is σ = 5722617600. Its totient is φ = 2682408960.

The previous prime is 4020013201. The next prime is 4020013229. The reversal of 4020013205 is 5023100204.

It is not a de Polignac number, because 4020013205 - 2² = 4020013201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020013201) 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 63 ways as a sum of consecutive naturals, for example, 10606706 + ... + 10607084.

It is an arithmetic number, because the mean of its divisors is an integer number (89415900).

Almost surely, 2^4020013205 is an apocalyptic number.

It is an amenable number.

4020013205 is a deficient number, since it is larger than the sum of its proper divisors (1702604395).

4020013205 is a wasteful number, since it uses less digits than its factorization.

4020013205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4020013205 is about 63403.5740711831. The cubic root of 4020013205 is about 1590.0440641507.

Adding to 4020013205 its reverse (5023100204), we get a palindrome (9043113409).

The spelling of 4020013205 in words is "four billion, twenty million, thirteen thousand, two hundred five".