22007028 has 12 divisors (see below), whose sum is σ = 51349760. Its totient is φ = 7335672.

The previous prime is 22007023. The next prime is 22007033. The reversal of 22007028 is 82070022.

It is an interprime number because it is at equal distance from previous prime (22007023) and next prime (22007033).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22006995 and 22007013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916948 + ... + 916971.

Almost surely, 2^22007028 is an apocalyptic number.

It is an amenable number.

22007028 is an abundant number, since it is smaller than the sum of its proper divisors (29342732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22007028 is a wasteful number, since it uses less digits than its factorization.

22007028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833926 (or 1833924 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22007028 is about 4691.1648873174. The cubic root of 22007028 is about 280.2337673622.

The spelling of 22007028 in words is "twenty-two million, seven thousand, twenty-eight".