144234420 has 72 divisors (see below), whose sum is σ = 443930592. Its totient is φ = 34964160.

The previous prime is 144234401. The next prime is 144234437. The reversal of 144234420 is 24432441.

It is a happy number.

144234420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2674 + ... + 17193.

Almost surely, 2^144234420 is an apocalyptic number.

144234420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144234420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221965296).

144234420 is an abundant number, since it is smaller than the sum of its proper divisors (299696172).

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

144234420 is a wasteful number, since it uses less digits than its factorization.

144234420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901 (or 19888 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144234420 is about 12009.7635280633. The cubic root of 144234420 is about 524.4325478817.

Adding to 144234420 its reverse (24432441), we get a palindrome (168666861).

The spelling of 144234420 in words is "one hundred forty-four million, two hundred thirty-four thousand, four hundred twenty".