144280738 has 32 divisors (see below), whose sum is σ = 257304960. Its totient is φ = 59391360.

The previous prime is 144280693. The next prime is 144280739. The reversal of 144280738 is 837082441.

It is a junction number, because it is equal to n+sod(n) for n = 144280697 and 144280706.

It is not an unprimeable number, because it can be changed into a prime (144280739) 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 15 ways as a sum of consecutive naturals, for example, 34758 + ... + 38686.

It is an arithmetic number, because the mean of its divisors is an integer number (8040780).

Almost surely, 2^144280738 is an apocalyptic number.

144280738 is a deficient number, since it is larger than the sum of its proper divisors (113024222).

144280738 is a wasteful number, since it uses less digits than its factorization.

144280738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 144280738 is about 12011.6917209858. The cubic root of 144280738 is about 524.4886788826.

The spelling of 144280738 in words is "one hundred forty-four million, two hundred eighty thousand, seven hundred thirty-eight".