144909944 has 8 divisors (see below), whose sum is σ = 271706160. Its totient is φ = 72454968.

The previous prime is 144909943. The next prime is 144909967. The reversal of 144909944 is 449909441.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 144909895 and 144909904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144909943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056864 + ... + 9056879.

It is an arithmetic number, because the mean of its divisors is an integer number (33963270).

Almost surely, 2^144909944 is an apocalyptic number.

It is an amenable number.

144909944 is a deficient number, since it is larger than the sum of its proper divisors (126796216).

144909944 is a wasteful number, since it uses less digits than its factorization.

144909944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113749 (or 18113745 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 144909944 is about 12037.8546261367. The cubic root of 144909944 is about 525.2500021710.

The spelling of 144909944 in words is "one hundred forty-four million, nine hundred nine thousand, nine hundred forty-four".