22040305405 has 8 divisors (see below), whose sum is σ = 26454799872. Its totient is φ = 17627955408.

The previous prime is 22040305403. The next prime is 22040305423. The reversal of 22040305405 is 50450304022.

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

It is a cyclic number.

It is not a de Polignac number, because 22040305405 - 2¹ = 22040305403 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 22040305405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040305403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513417 + ... + 554686.

It is an arithmetic number, because the mean of its divisors is an integer number (3306849984).

Almost surely, 2^22040305405 is an apocalyptic number.

It is an amenable number.

22040305405 is a deficient number, since it is larger than the sum of its proper divisors (4414494467).

22040305405 is a wasteful number, since it uses less digits than its factorization.

22040305405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072235.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 22040305405 its reverse (50450304022), we get a palindrome (72490609427).

The spelling of 22040305405 in words is "twenty-two billion, forty million, three hundred five thousand, four hundred five".