22402430993 has 4 divisors (see below), whose sum is σ = 22449200640. Its totient is φ = 22355661348.

The previous prime is 22402430989. The next prime is 22402431013. The reversal of 22402430993 is 39903420422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22402430993 - 2² = 22402430989 is a prime.

It is a super-2 number, since 2×22402430993² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22402430933) 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 3 ways as a sum of consecutive naturals, for example, 23384105 + ... + 23385062.

It is an arithmetic number, because the mean of its divisors is an integer number (5612300160).

Almost surely, 2^22402430993 is an apocalyptic number.

It is an amenable number.

22402430993 is a deficient number, since it is larger than the sum of its proper divisors (46769647).

22402430993 is an equidigital number, since it uses as much as digits as its factorization.

22402430993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46769646.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 22402430993 in words is "twenty-two billion, four hundred two million, four hundred thirty thousand, nine hundred ninety-three".