144020322 has 32 divisors (see below), whose sum is σ = 331084800. Its totient is φ = 46350864.

The previous prime is 144020321. The next prime is 144020369. The reversal of 144020322 is 223020441.

144020322 is a `hidden beast` number, since 1 + 440 + 203 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 144020295 and 144020304.

It is not an unprimeable number, because it can be changed into a prime (144020321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44418 + ... + 47549.

It is an arithmetic number, because the mean of its divisors is an integer number (10346400).

Almost surely, 2^144020322 is an apocalyptic number.

144020322 is an abundant number, since it is smaller than the sum of its proper divisors (187064478).

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

144020322 is a wasteful number, since it uses less digits than its factorization.

144020322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92007 (or 92001 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 144020322 is about 12000.8467201277. The cubic root of 144020322 is about 524.1729344906.

Adding to 144020322 its reverse (223020441), we get a palindrome (367040763).

The spelling of 144020322 in words is "one hundred forty-four million, twenty thousand, three hundred twenty-two".