144757838 has 16 divisors (see below), whose sum is σ = 227755584. Its totient is φ = 68922720.

The previous prime is 144757831. The next prime is 144757861. The reversal of 144757838 is 838757441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 144757792 and 144757801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144757831) 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, 17333 + ... + 24288.

It is an arithmetic number, because the mean of its divisors is an integer number (14234724).

Almost surely, 2^144757838 is an apocalyptic number.

144757838 is a deficient number, since it is larger than the sum of its proper divisors (82997746).

144757838 is a wasteful number, since it uses less digits than its factorization.

144757838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41707.

The product of its digits is 752640, while the sum is 47.

The square root of 144757838 is about 12031.5351472703. The cubic root of 144757838 is about 525.0661600674.

The spelling of 144757838 in words is "one hundred forty-four million, seven hundred fifty-seven thousand, eight hundred thirty-eight".