144500420 has 24 divisors (see below), whose sum is σ = 304080000. Its totient is φ = 57680352.

The previous prime is 144500387. The next prime is 144500423. The reversal of 144500420 is 24005441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 144500392 and 144500401.

It is not an unprimeable number, because it can be changed into a prime (144500423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2741 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (12670000).

Almost surely, 2^144500420 is an apocalyptic number.

144500420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144500420 is an abundant number, since it is smaller than the sum of its proper divisors (159579580).

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

144500420 is a wasteful number, since it uses less digits than its factorization.

144500420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14987 (or 14985 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 144500420 is about 12020.8327498556. The cubic root of 144500420 is about 524.7547395607.

Adding to 144500420 its reverse (24005441), we get a palindrome (168505861).

The spelling of 144500420 in words is "one hundred forty-four million, five hundred thousand, four hundred twenty".