144321630 has 16 divisors (see below), whose sum is σ = 346371984. Its totient is φ = 38485760.

The previous prime is 144321623. The next prime is 144321637. The reversal of 144321630 is 36123441.

It is an interprime number because it is at equal distance from previous prime (144321623) and next prime (144321637).

It is a self number, because there is not a number n which added to its sum of digits gives 144321630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144321637) 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, 2405331 + ... + 2405390.

It is an arithmetic number, because the mean of its divisors is an integer number (21648249).

Almost surely, 2^144321630 is an apocalyptic number.

144321630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144321630 is an abundant number, since it is smaller than the sum of its proper divisors (202050354).

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

144321630 is a wasteful number, since it uses less digits than its factorization.

144321630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810731.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 144321630 is about 12013.3937752827. The cubic root of 144321630 is about 524.5382243393.

The spelling of 144321630 in words is "one hundred forty-four million, three hundred twenty-one thousand, six hundred thirty".