144222432 has 48 divisors (see below), whose sum is σ = 385015680. Its totient is φ = 47257472.

The previous prime is 144222431. The next prime is 144222433. The reversal of 144222432 is 234222441.

It is an interprime number because it is at equal distance from previous prime (144222431) and next prime (144222433).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144222431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7068 + ... + 18395.

It is an arithmetic number, because the mean of its divisors is an integer number (8021160).

Almost surely, 2^144222432 is an apocalyptic number.

144222432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144222432 is an abundant number, since it is smaller than the sum of its proper divisors (240793248).

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

144222432 is a wasteful number, since it uses less digits than its factorization.

144222432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25535 (or 25527 counting only the distinct ones).

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

The square root of 144222432 is about 12009.2644237688. The cubic root of 144222432 is about 524.4180181286.

Adding to 144222432 its reverse (234222441), we get a palindrome (378444873).

Subtracting 144222432 from its reverse (234222441), we obtain a palindrome (90000009).

The spelling of 144222432 in words is "one hundred forty-four million, two hundred twenty-two thousand, four hundred thirty-two".