144012040 has 16 divisors (see below), whose sum is σ = 324027180. Its totient is φ = 57604800.

The previous prime is 144012013. The next prime is 144012047. The reversal of 144012040 is 40210441.

It can be written as a sum of positive squares in 2 ways, for example, as 129004164 + 15007876 = 11358^2 + 3874^2 .

It is not an unprimeable number, because it can be changed into a prime (144012047) 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 3 ways as a sum of consecutive naturals, for example, 1800111 + ... + 1800190.

Almost surely, 2^144012040 is an apocalyptic number.

144012040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144012040 is an abundant number, since it is smaller than the sum of its proper divisors (180015140).

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

144012040 is a wasteful number, since it uses less digits than its factorization.

144012040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600312 (or 3600308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 144012040 is about 12000.5016561809. The cubic root of 144012040 is about 524.1628866413.

Adding to 144012040 its reverse (40210441), we get a palindrome (184222481).

The spelling of 144012040 in words is "one hundred forty-four million, twelve thousand, forty".