22081678 has 8 divisors (see below), whose sum is σ = 33153120. Its totient is φ = 11030640.

The previous prime is 22081663. The next prime is 22081693. The reversal of 22081678 is 87618022.

It is an interprime number because it is at equal distance from previous prime (22081663) and next prime (22081693).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2023 + ... + 6946.

It is an arithmetic number, because the mean of its divisors is an integer number (4144140).

Almost surely, 2^22081678 is an apocalyptic number.

22081678 is a deficient number, since it is larger than the sum of its proper divisors (11071442).

22081678 is a wasteful number, since it uses less digits than its factorization.

22081678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 22081678 is about 4699.1145974534. The cubic root of 22081678 is about 280.5502699146.

The spelling of 22081678 in words is "twenty-two million, eighty-one thousand, six hundred seventy-eight".