144842220 has 108 divisors (see below), whose sum is σ = 448405776. Its totient is φ = 37843200.

The previous prime is 144842219. The next prime is 144842231. The reversal of 144842220 is 22248441.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 959145 + ... + 959295.

Almost surely, 2^144842220 is an apocalyptic number.

144842220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144842220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224202888).

144842220 is an abundant number, since it is smaller than the sum of its proper divisors (303563556).

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

144842220 is a wasteful number, since it uses less digits than its factorization.

144842220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

The square root of 144842220 is about 12035.0413376939. The cubic root of 144842220 is about 525.1681638164.

The spelling of 144842220 in words is "one hundred forty-four million, eight hundred forty-two thousand, two hundred twenty".