144447818 has 16 divisors (see below), whose sum is σ = 219810240. Its totient is φ = 71184576.

The previous prime is 144447803. The next prime is 144447847. The reversal of 144447818 is 818744441.

It is a super-2 number, since 2×144447818² = 41730344249922248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45218 + ... + 48306.

It is an arithmetic number, because the mean of its divisors is an integer number (13738140).

Almost surely, 2^144447818 is an apocalyptic number.

144447818 is a deficient number, since it is larger than the sum of its proper divisors (75362422).

144447818 is a wasteful number, since it uses less digits than its factorization.

144447818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421.

The product of its digits is 114688, while the sum is 41.

The square root of 144447818 is about 12018.6445991218. The cubic root of 144447818 is about 524.6910569340.

The spelling of 144447818 in words is "one hundred forty-four million, four hundred forty-seven thousand, eight hundred eighteen".