22608455438 has 4 divisors (see below), whose sum is σ = 33912683160. Its totient is φ = 11304227718.

The previous prime is 22608455417. The next prime is 22608455473. The reversal of 22608455438 is 83455480622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83455480622 = 2 ⋅41727740311.

It is a super-2 number, since 2×22608455438² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22608455392 and 22608455401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652113858 + ... + 5652113861.

It is an arithmetic number, because the mean of its divisors is an integer number (8478170790).

Almost surely, 2^22608455438 is an apocalyptic number.

22608455438 is a deficient number, since it is larger than the sum of its proper divisors (11304227722).

22608455438 is a wasteful number, since it uses less digits than its factorization.

22608455438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304227721.

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 22608455438 in words is "twenty-two billion, six hundred eight million, four hundred fifty-five thousand, four hundred thirty-eight".