144433040 has 20 divisors (see below), whose sum is σ = 335807004. Its totient is φ = 57773184.

The previous prime is 144433019. The next prime is 144433049. The reversal of 144433040 is 40334441.

It can be written as a sum of positive squares in 2 ways, for example, as 111851776 + 32581264 = 10576^2 + 5708^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 144432997 and 144433015.

It is not an unprimeable number, because it can be changed into a prime (144433049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902627 + ... + 902786.

Almost surely, 2^144433040 is an apocalyptic number.

144433040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144433040 is an abundant number, since it is smaller than the sum of its proper divisors (191373964).

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

144433040 is a wasteful number, since it uses less digits than its factorization.

144433040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805426 (or 1805420 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 144433040 is about 12018.0297886134. The cubic root of 144433040 is about 524.6731631622.

Adding to 144433040 its reverse (40334441), we get a palindrome (184767481).

The spelling of 144433040 in words is "one hundred forty-four million, four hundred thirty-three thousand, forty".