144140340 has 48 divisors (see below), whose sum is σ = 404349120. Its totient is φ = 38365440.

The previous prime is 144140329. The next prime is 144140341. The reversal of 144140340 is 43041441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144140341) 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, 35200 + ... + 39080.

It is an arithmetic number, because the mean of its divisors is an integer number (8423940).

Almost surely, 2^144140340 is an apocalyptic number.

144140340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144140340 is an abundant number, since it is smaller than the sum of its proper divisors (260208780).

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

144140340 is a wasteful number, since it uses less digits than its factorization.

144140340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512 (or 4510 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144140340 is about 12005.8460759748. The cubic root of 144140340 is about 524.3184989481.

Adding to 144140340 its reverse (43041441), we get a palindrome (187181781).

The spelling of 144140340 in words is "one hundred forty-four million, one hundred forty thousand, three hundred forty".