144474449 has 16 divisors (see below), whose sum is σ = 178132608. Its totient is φ = 114346752.

The previous prime is 144474437. The next prime is 144474479. The reversal of 144474449 is 944474441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144474449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144474479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5147 + ... + 17760.

It is an arithmetic number, because the mean of its divisors is an integer number (11133288).

Almost surely, 2^144474449 is an apocalyptic number.

It is an amenable number.

144474449 is a deficient number, since it is larger than the sum of its proper divisors (33658159).

144474449 is a wasteful number, since it uses less digits than its factorization.

144474449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22984.

The product of its digits is 258048, while the sum is 41.

The square root of 144474449 is about 12019.7524516938. The cubic root of 144474449 is about 524.7232996939.

The spelling of 144474449 in words is "one hundred forty-four million, four hundred seventy-four thousand, four hundred forty-nine".