22808061 has 10 divisors (see below), whose sum is σ = 34071422. Its totient is φ = 15205320.

The previous prime is 22808059. The next prime is 22808063. The reversal of 22808061 is 16080822.

It is an interprime number because it is at equal distance from previous prime (22808059) and next prime (22808063).

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 1822500 = 4581^2 + 1350^2 .

It is not a de Polignac number, because 22808061 - 2¹ = 22808059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22808063) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 140710 + ... + 140871.

Almost surely, 2^22808061 is an apocalyptic number.

It is an amenable number.

22808061 is a deficient number, since it is larger than the sum of its proper divisors (11263361).

22808061 is an equidigital number, since it uses as much as digits as its factorization.

22808061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281593 (or 281584 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 22808061 is about 4775.7785752692. The cubic root of 22808061 is about 283.5934016593.

Adding to 22808061 its reverse (16080822), we get a palindrome (38888883).

The spelling of 22808061 in words is "twenty-two million, eight hundred eight thousand, sixty-one".