22026387 has 8 divisors (see below), whose sum is σ = 30645504. Its totient is φ = 14045768.

The previous prime is 22026371. The next prime is 22026391. The reversal of 22026387 is 78362022.

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

It is a cyclic number.

It is not a de Polignac number, because 22026387 - 2⁴ = 22026371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22027387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159543 + ... + 159680.

It is an arithmetic number, because the mean of its divisors is an integer number (3830688).

Almost surely, 2^22026387 is an apocalyptic number.

22026387 is a deficient number, since it is larger than the sum of its proper divisors (8619117).

22026387 is a wasteful number, since it uses less digits than its factorization.

22026387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319249.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22026387 is about 4693.2277805365. The cubic root of 22026387 is about 280.3159146884.

The spelling of 22026387 in words is "twenty-two million, twenty-six thousand, three hundred eighty-seven".