144203340 has 24 divisors (see below), whose sum is σ = 403769520. Its totient is φ = 38454208.

The previous prime is 144203327. The next prime is 144203347. The reversal of 144203340 is 43302441.

It is not an unprimeable number, because it can be changed into a prime (144203347) 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, 1201635 + ... + 1201754.

It is an arithmetic number, because the mean of its divisors is an integer number (16823730).

Almost surely, 2^144203340 is an apocalyptic number.

144203340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144203340 is an abundant number, since it is smaller than the sum of its proper divisors (259566180).

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

144203340 is a wasteful number, since it uses less digits than its factorization.

144203340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403401 (or 2403399 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 144203340 is about 12008.4695111409. The cubic root of 144203340 is about 524.3948764890.

Adding to 144203340 its reverse (43302441), we get a palindrome (187505781).

The spelling of 144203340 in words is "one hundred forty-four million, two hundred three thousand, three hundred forty".