144742038 has 64 divisors (see below), whose sum is σ = 359546880. Its totient is φ = 37908000.

The previous prime is 144742033. The next prime is 144742049. The reversal of 144742038 is 830247441.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144742033) 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 31 ways as a sum of consecutive naturals, for example, 21813 + ... + 27663.

It is an arithmetic number, because the mean of its divisors is an integer number (5617920).

Almost surely, 2^144742038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144742038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179773440).

144742038 is an abundant number, since it is smaller than the sum of its proper divisors (214804842).

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

144742038 is a wasteful number, since it uses less digits than its factorization.

144742038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 144742038 is about 12030.8785215378. The cubic root of 144742038 is about 525.0470560997.

Adding to 144742038 its reverse (830247441), we get a palindrome (974989479).

The spelling of 144742038 in words is "one hundred forty-four million, seven hundred forty-two thousand, thirty-eight".