144232420 has 96 divisors (see below), whose sum is σ = 342921600. Its totient is φ = 50632704.

The previous prime is 144232411. The next prime is 144232427. The reversal of 144232420 is 24232441.

It is a happy number.

144232420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144232391 and 144232400.

It is not an unprimeable number, because it can be changed into a prime (144232427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 536046 + ... + 536314.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^144232420 is an apocalyptic number.

144232420 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 144232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171460800).

144232420 is an abundant number, since it is smaller than the sum of its proper divisors (198689180).

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

144232420 is a wasteful number, since it uses less digits than its factorization.

144232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144232420 is about 12009.6802621885. The cubic root of 144232420 is about 524.4301238881.

Adding to 144232420 its reverse (24232441), we get a palindrome (168464861).

The spelling of 144232420 in words is "one hundred forty-four million, two hundred thirty-two thousand, four hundred twenty".