144422340 has 48 divisors (see below), whose sum is σ = 404974080. Its totient is φ = 38456320.

The previous prime is 144422339. The next prime is 144422351. The reversal of 144422340 is 43224441.

It is a happy number.

144422340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 144422340.

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, 54445 + ... + 57035.

It is an arithmetic number, because the mean of its divisors is an integer number (8436960).

Almost surely, 2^144422340 is an apocalyptic number.

144422340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144422340 is an abundant number, since it is smaller than the sum of its proper divisors (260551740).

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

144422340 is a wasteful number, since it uses less digits than its factorization.

144422340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3530 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144422340 is about 12017.5846158868. The cubic root of 144422340 is about 524.6602064281.

Adding to 144422340 its reverse (43224441), we get a palindrome (187646781).

The spelling of 144422340 in words is "one hundred forty-four million, four hundred twenty-two thousand, three hundred forty".