144431244 has 18 divisors (see below), whose sum is σ = 365090180. Its totient is φ = 48143736.

The previous prime is 144431227. The next prime is 144431257. The reversal of 144431244 is 442134441.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2005954 + ... + 2006025.

Almost surely, 2^144431244 is an apocalyptic number.

It is an amenable number.

144431244 is an abundant number, since it is smaller than the sum of its proper divisors (220658936).

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

144431244 is a wasteful number, since it uses less digits than its factorization.

144431244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011989 (or 4011984 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 144431244 is about 12017.9550673149. The cubic root of 144431244 is about 524.6709884130.

Adding to 144431244 its reverse (442134441), we get a palindrome (586565685).

It can be divided in two parts, 144 and 431244, that multiplied together give a cube (62099136 = 396³).

The spelling of 144431244 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred forty-four".