144222040 has 32 divisors (see below), whose sum is σ = 324999360. Its totient is φ = 57600000.

The previous prime is 144222037. The next prime is 144222047. The reversal of 144222040 is 40222441.

It is a junction number, because it is equal to n+sod(n) for n = 144221999 and 144222017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144222047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27640 + ... + 32440.

It is an arithmetic number, because the mean of its divisors is an integer number (10156230).

Almost surely, 2^144222040 is an apocalyptic number.

144222040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144222040 is an abundant number, since it is smaller than the sum of its proper divisors (180777320).

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

144222040 is a wasteful number, since it uses less digits than its factorization.

144222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 5559 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 144222040 is about 12009.2481030246. The cubic root of 144222040 is about 524.4175430012.

Adding to 144222040 its reverse (40222441), we get a palindrome (184444481).

The spelling of 144222040 in words is "one hundred forty-four million, two hundred twenty-two thousand, forty".