22440429897 has 8 divisors (see below), whose sum is σ = 30044725920. Its totient is φ = 14898210240.

The previous prime is 22440429859. The next prime is 22440429899. The reversal of 22440429897 is 79892404422.

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

It is not a de Polignac number, because 22440429897 - 2⁶ = 22440429833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22440429899) 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 7 ways as a sum of consecutive naturals, for example, 15518247 + ... + 15519692.

It is an arithmetic number, because the mean of its divisors is an integer number (3755590740).

Almost surely, 2^22440429897 is an apocalyptic number.

It is an amenable number.

22440429897 is a deficient number, since it is larger than the sum of its proper divisors (7604296023).

22440429897 is a wasteful number, since it uses less digits than its factorization.

22440429897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31038183.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 22440429897 in words is "twenty-two billion, four hundred forty million, four hundred twenty-nine thousand, eight hundred ninety-seven".