144323340 has 48 divisors (see below), whose sum is σ = 461836032. Its totient is φ = 32988096.

The previous prime is 144323329. The next prime is 144323359. The reversal of 144323340 is 43323441.

It is a self number, because there is not a number n which added to its sum of digits gives 144323340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171394 + ... + 172233.

It is an arithmetic number, because the mean of its divisors is an integer number (9621584).

Almost surely, 2^144323340 is an apocalyptic number.

144323340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144323340 is an abundant number, since it is smaller than the sum of its proper divisors (317512692).

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

144323340 is a wasteful number, since it uses less digits than its factorization.

144323340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343646 (or 343644 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 144323340 is about 12013.4649456350. The cubic root of 144323340 is about 524.5402960011.

Adding to 144323340 its reverse (43323441), we get a palindrome (187646781).

The spelling of 144323340 in words is "one hundred forty-four million, three hundred twenty-three thousand, three hundred forty".