22440147 has 16 divisors (see below), whose sum is σ = 30792960. Its totient is φ = 14529632.

The previous prime is 22440137. The next prime is 22440149. The reversal of 22440147 is 74104422.

It is not a de Polignac number, because 22440147 - 2⁸ = 22439891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22440149) 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, 16354 + ... + 17672.

It is an arithmetic number, because the mean of its divisors is an integer number (1924560).

Almost surely, 2^22440147 is an apocalyptic number.

22440147 is a deficient number, since it is larger than the sum of its proper divisors (8352813).

22440147 is a wasteful number, since it uses less digits than its factorization.

22440147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 22440147 is about 4737.1032287676. The cubic root of 22440147 is about 282.0602582361.

Adding to 22440147 its reverse (74104422), we get a palindrome (96544569).

It can be divided in two parts, 2244014 and 7, that added together give a triangular number (2244021 = T₂₁₁₈).

The spelling of 22440147 in words is "twenty-two million, four hundred forty thousand, one hundred forty-seven".