22028611 has 8 divisors (see below), whose sum is σ = 24147648. Its totient is φ = 19929000.

The previous prime is 22028593. The next prime is 22028621. The reversal of 22028611 is 11682022.

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 22028611 - 2⁷ = 22028483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22028621) 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, 2425 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (3018456).

Almost surely, 2^22028611 is an apocalyptic number.

22028611 is a deficient number, since it is larger than the sum of its proper divisors (2119037).

22028611 is a wasteful number, since it uses less digits than its factorization.

22028611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9713.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 22028611 is about 4693.4647117029. The cubic root of 22028611 is about 280.3253488520.

The spelling of 22028611 in words is "twenty-two million, twenty-eight thousand, six hundred eleven".