144203432 has 8 divisors (see below), whose sum is σ = 270381450. Its totient is φ = 72101712.

The previous prime is 144203431. The next prime is 144203443. The reversal of 144203432 is 234302441.

It can be written as a sum of positive squares in only one way, i.e., 108035236 + 36168196 = 10394^2 + 6014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 144203398 and 144203407.

It is not an unprimeable number, because it can be changed into a prime (144203431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9012707 + ... + 9012722.

Almost surely, 2^144203432 is an apocalyptic number.

It is an amenable number.

144203432 is a deficient number, since it is larger than the sum of its proper divisors (126178018).

144203432 is a wasteful number, since it uses less digits than its factorization.

144203432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18025435 (or 18025431 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 144203432 is about 12008.4733417700. The cubic root of 144203432 is about 524.3949880081.

Adding to 144203432 its reverse (234302441), we get a palindrome (378505873).

Subtracting 144203432 from its reverse (234302441), we obtain a palindrome (90099009).

The spelling of 144203432 in words is "one hundred forty-four million, two hundred three thousand, four hundred thirty-two".