144747432 has 64 divisors (see below), whose sum is σ = 415065600. Its totient is φ = 46690560.

The previous prime is 144747409. The next prime is 144747437. The reversal of 144747432 is 234747441.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (144747437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4113 + ... + 17504.

It is an arithmetic number, because the mean of its divisors is an integer number (6485400).

Almost surely, 2^144747432 is an apocalyptic number.

144747432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144747432 is an abundant number, since it is smaller than the sum of its proper divisors (270318168).

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

144747432 is a wasteful number, since it uses less digits than its factorization.

144747432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21663 (or 21653 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 144747432 is about 12031.1026926047. The cubic root of 144747432 is about 525.0535782054.

Subtracting 144747432 from its reverse (234747441), we obtain a palindrome (90000009).

The spelling of 144747432 in words is "one hundred forty-four million, seven hundred forty-seven thousand, four hundred thirty-two".