144429730 has 16 divisors (see below), whose sum is σ = 261429120. Its totient is φ = 57448432.

The previous prime is 144429709. The next prime is 144429737. The reversal of 144429730 is 37924441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (144429737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38554 + ... + 42133.

It is an arithmetic number, because the mean of its divisors is an integer number (16339320).

Almost surely, 2^144429730 is an apocalyptic number.

144429730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144429730 is a deficient number, since it is larger than the sum of its proper divisors (116999390).

144429730 is a wasteful number, since it uses less digits than its factorization.

144429730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80873.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 144429730 is about 12017.8920780643. The cubic root of 144429730 is about 524.6691551194.

The spelling of 144429730 in words is "one hundred forty-four million, four hundred twenty-nine thousand, seven hundred thirty".