144345738 has 16 divisors (see below), whose sum is σ = 293001120. Its totient is φ = 47396976.

The previous prime is 144345727. The next prime is 144345739. The reversal of 144345738 is 837543441.

It is a junction number, because it is equal to n+sod(n) for n = 144345696 and 144345705.

It is not an unprimeable number, because it can be changed into a prime (144345739) by changing a digit.

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, 179133 + ... + 179936.

It is an arithmetic number, because the mean of its divisors is an integer number (18312570).

Almost surely, 2^144345738 is an apocalyptic number.

144345738 is an abundant number, since it is smaller than the sum of its proper divisors (148655382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144345738 is a wasteful number, since it uses less digits than its factorization.

144345738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359141.

The product of its digits is 161280, while the sum is 39.

The square root of 144345738 is about 12014.3971134635. The cubic root of 144345738 is about 524.5674296254.

The spelling of 144345738 in words is "one hundred forty-four million, three hundred forty-five thousand, seven hundred thirty-eight".