22890147 has 16 divisors (see below), whose sum is σ = 35692800. Its totient is φ = 12775392.

The previous prime is 22890113. The next prime is 22890151. The reversal of 22890147 is 74109822.

It is a happy number.

It is not a de Polignac number, because 22890147 - 2²⁰ = 21841571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22898147) 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 15 ways as a sum of consecutive naturals, for example, 11772 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (2230800).

Almost surely, 2^22890147 is an apocalyptic number.

22890147 is a deficient number, since it is larger than the sum of its proper divisors (12802653).

22890147 is a wasteful number, since it uses less digits than its factorization.

22890147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25402.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 22890147 is about 4784.3648481277. The cubic root of 22890147 is about 283.9332110020.

Adding to 22890147 its reverse (74109822), we get a palindrome (96999969).

The spelling of 22890147 in words is "twenty-two million, eight hundred ninety thousand, one hundred forty-seven".