144440413 has 12 divisors (see below), whose sum is σ = 164641440. Its totient is φ = 126309456.

The previous prime is 144440399. The next prime is 144440431. The reversal of 144440413 is 314044441.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-144440413 is a prime.

It is a super-2 number, since 2×144440413² = 41726065815221138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19281 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (13720120).

Almost surely, 2^144440413 is an apocalyptic number.

144440413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144440413 is a deficient number, since it is larger than the sum of its proper divisors (20201027).

144440413 is a wasteful number, since it uses less digits than its factorization.

144440413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45028 (or 45015 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 144440413 is about 12018.3365321495. The cubic root of 144440413 is about 524.6820908273.

Adding to 144440413 its reverse (314044441), we get a palindrome (458484854).

The spelling of 144440413 in words is "one hundred forty-four million, four hundred forty thousand, four hundred thirteen".