22068473 has 6 divisors (see below), whose sum is σ = 25671546. Its totient is φ = 18915792.

The previous prime is 22068463. The next prime is 22068479. The reversal of 22068473 is 37486022.

It can be written as a sum of positive squares in only one way, i.e., 21409129 + 659344 = 4627^2 + 812^2 .

It is not a de Polignac number, because 22068473 - 2⁴ = 22068457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22068479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225140 + ... + 225237.

It is an arithmetic number, because the mean of its divisors is an integer number (4278591).

Almost surely, 2^22068473 is an apocalyptic number.

It is an amenable number.

22068473 is a deficient number, since it is larger than the sum of its proper divisors (3603073).

22068473 is an equidigital number, since it uses as much as digits as its factorization.

22068473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450391 (or 450384 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22068473 is about 4697.7093354102. The cubic root of 22068473 is about 280.4943350798.

The spelling of 22068473 in words is "twenty-two million, sixty-eight thousand, four hundred seventy-three".