22451442406 has 8 divisors (see below), whose sum is σ = 33677926200. Its totient is φ = 11225467008.

The previous prime is 22451442389. The next prime is 22451442439. The reversal of 22451442406 is 60424415422.

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

It is a super-2 number, since 2×22451442406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15145 + ... + 212443.

It is an arithmetic number, because the mean of its divisors is an integer number (4209740775).

Almost surely, 2^22451442406 is an apocalyptic number.

22451442406 is a deficient number, since it is larger than the sum of its proper divisors (11226483794).

22451442406 is a wasteful number, since it uses less digits than its factorization.

22451442406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254198.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 22451442406 its reverse (60424415422), we get a palindrome (82875857828).

The spelling of 22451442406 in words is "twenty-two billion, four hundred fifty-one million, four hundred forty-two thousand, four hundred six".