44218147 has 4 divisors (see below), whose sum is σ = 45246520. Its totient is φ = 43189776.

The previous prime is 44218099. The next prime is 44218157. The reversal of 44218147 is 74181244.

It is a happy number.

44218147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44218147 - 2²³ = 35829539 is a prime.

It is a super-2 number, since 2×44218147² = 3910489048227218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44218157) 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 3 ways as a sum of consecutive naturals, for example, 514122 + ... + 514207.

It is an arithmetic number, because the mean of its divisors is an integer number (11311630).

Almost surely, 2^44218147 is an apocalyptic number.

44218147 is a deficient number, since it is larger than the sum of its proper divisors (1028373).

44218147 is a wasteful number, since it uses less digits than its factorization.

44218147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028372.

The product of its digits is 7168, while the sum is 31.

The square root of 44218147 is about 6649.6726987123. The cubic root of 44218147 is about 353.6173075063.

The spelling of 44218147 in words is "forty-four million, two hundred eighteen thousand, one hundred forty-seven".