22250236 has 6 divisors (see below), whose sum is σ = 38937920. Its totient is φ = 11125116.

The previous prime is 22250233. The next prime is 22250243. The reversal of 22250236 is 63205222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2781276 + ... + 2781283.

Almost surely, 2^22250236 is an apocalyptic number.

It is an amenable number.

22250236 is a deficient number, since it is larger than the sum of its proper divisors (16687684).

22250236 is a wasteful number, since it uses less digits than its factorization.

22250236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562563 (or 5562561 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 22250236 is about 4717.0155819119. The cubic root of 22250236 is about 281.2623108356.

Adding to 22250236 its reverse (63205222), we get a palindrome (85455458).

The spelling of 22250236 in words is "twenty-two million, two hundred fifty thousand, two hundred thirty-six".