22045005431 has 8 divisors (see below), whose sum is σ = 23015630304. Its totient is φ = 21075392800.

The previous prime is 22045005427. The next prime is 22045005439. The reversal of 22045005431 is 13450054022.

It is a happy number.

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 22045005431 - 2² = 22045005427 is a prime.

It is a super-2 number, since 2×22045005431² (a number of 21 digits) contains 22 as substring.

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 22045005431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22045005439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208376 + ... + 295821.

It is an arithmetic number, because the mean of its divisors is an integer number (2876953788).

Almost surely, 2^22045005431 is an apocalyptic number.

22045005431 is a deficient number, since it is larger than the sum of its proper divisors (970624873).

22045005431 is a wasteful number, since it uses less digits than its factorization.

22045005431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506121.

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

Adding to 22045005431 its reverse (13450054022), we get a palindrome (35495059453).

The spelling of 22045005431 in words is "twenty-two billion, forty-five million, five thousand, four hundred thirty-one".