22290147 has 48 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 13024800.

The previous prime is 22290143. The next prime is 22290161. The reversal of 22290147 is 74109222.

It is not a de Polignac number, because 22290147 - 2² = 22290143 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22290147.

It is not an unprimeable number, because it can be changed into a prime (22290143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82729 + ... + 82997.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

It is a vampire number, since it can be written as 2421 ⋅ 9207 (with its own digits).

Almost surely, 2^22290147 is an apocalyptic number.

22290147 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22290147 is a deficient number, since it is larger than the sum of its proper divisors (15449373).

22290147 is a wasteful number, since it uses less digits than its factorization.

22290147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 22290147 is about 4721.2442216009. The cubic root of 22290147 is about 281.4303802880.

Adding to 22290147 its reverse (74109222), we get a palindrome (96399369).

The spelling of 22290147 in words is "twenty-two million, two hundred ninety thousand, one hundred forty-seven".