144420330 has 32 divisors (see below), whose sum is σ = 364852800. Its totient is φ = 36484992.

The previous prime is 144420329. The next prime is 144420343. The reversal of 144420330 is 33024441.

It is a junction number, because it is equal to n+sod(n) for n = 144420297 and 144420306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126115 + ... + 127254.

It is an arithmetic number, because the mean of its divisors is an integer number (11401650).

Almost surely, 2^144420330 is an apocalyptic number.

144420330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144420330 is an abundant number, since it is smaller than the sum of its proper divisors (220432470).

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

144420330 is a wasteful number, since it uses less digits than its factorization.

144420330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253398.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 144420330 is about 12017.5009881423. The cubic root of 144420330 is about 524.6577724282.

Adding to 144420330 its reverse (33024441), we get a palindrome (177444771).

The spelling of 144420330 in words is "one hundred forty-four million, four hundred twenty thousand, three hundred thirty".