22228037 has 8 divisors (see below), whose sum is σ = 23996280. Its totient is φ = 20468160.

The previous prime is 22228021. The next prime is 22228091. The reversal of 22228037 is 73082222.

It can be written as a sum of positive squares in 4 ways, for example, as 6241 + 22221796 = 79^2 + 4714^2 .

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 22228037 - 2⁴ = 22228021 is a prime.

It is a super-3 number, since 3×22228037³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22227997 and 22228015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22228337) 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 in 7 ways as a sum of consecutive naturals, for example, 4139 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (2999535).

Almost surely, 2^22228037 is an apocalyptic number.

It is an amenable number.

22228037 is a deficient number, since it is larger than the sum of its proper divisors (1768243).

22228037 is a wasteful number, since it uses less digits than its factorization.

22228037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 22228037 is about 4714.6619178898. The cubic root of 22228037 is about 281.1687414963.

The spelling of 22228037 in words is "twenty-two million, two hundred twenty-eight thousand, thirty-seven".