22250386 has 4 divisors (see below), whose sum is σ = 33375582. Its totient is φ = 11125192.

The previous prime is 22250383. The next prime is 22250419. The reversal of 22250386 is 68305222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68305222 = 2 ⋅34152611.

It can be written as a sum of positive squares in only one way, i.e., 13950225 + 8300161 = 3735^2 + 2881^2 .

It is not an unprimeable number, because it can be changed into a prime (22250381) by changing a digit.

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 as a sum of consecutive naturals, namely, 5562595 + ... + 5562598.

Almost surely, 2^22250386 is an apocalyptic number.

22250386 is a deficient number, since it is larger than the sum of its proper divisors (11125196).

22250386 is a wasteful number, since it uses less digits than its factorization.

22250386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11125195.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 22250386 is about 4717.0314817690. The cubic root of 22250386 is about 281.2629428776.

The spelling of 22250386 in words is "twenty-two million, two hundred fifty thousand, three hundred eighty-six".