40220205635 has 4 divisors (see below), whose sum is σ = 48264246768. Its totient is φ = 32176164504.

The previous prime is 40220205629. The next prime is 40220205637. The reversal of 40220205635 is 53650202204.

40220205635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40220205635 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40220205598 and 40220205607.

It is not an unprimeable number, because it can be changed into a prime (40220205637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022020559 + ... + 4022020568.

It is an arithmetic number, because the mean of its divisors is an integer number (12066061692).

Almost surely, 2^40220205635 is an apocalyptic number.

40220205635 is a deficient number, since it is larger than the sum of its proper divisors (8044041133).

40220205635 is an equidigital number, since it uses as much as digits as its factorization.

40220205635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044041132.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 40220205635 its reverse (53650202204), we get a palindrome (93870407839).

The spelling of 40220205635 in words is "forty billion, two hundred twenty million, two hundred five thousand, six hundred thirty-five".