22308305493 has 8 divisors (see below), whose sum is σ = 29746265248. Its totient is φ = 14871274704.

The previous prime is 22308305491. The next prime is 22308305531. The reversal of 22308305493 is 39450380322.

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

It is not a de Polignac number, because 22308305493 - 2¹ = 22308305491 is a prime.

It is a super-3 number, since 3×22308305493³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22308305491) 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, 174130 + ... + 273747.

It is an arithmetic number, because the mean of its divisors is an integer number (3718283156).

Almost surely, 2^22308305493 is an apocalyptic number.

It is an amenable number.

22308305493 is a deficient number, since it is larger than the sum of its proper divisors (7437959755).

22308305493 is a wasteful number, since it uses less digits than its factorization.

22308305493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464483.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 22308305493 in words is "twenty-two billion, three hundred eight million, three hundred five thousand, four hundred ninety-three".