144582740 has 12 divisors (see below), whose sum is σ = 303623796. Its totient is φ = 57833088.

The previous prime is 144582721. The next prime is 144582743. The reversal of 144582740 is 47285441.

It can be written as a sum of positive squares in 2 ways, for example, as 108534724 + 36048016 = 10418^2 + 6004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144582740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144582743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3614549 + ... + 3614588.

It is an arithmetic number, because the mean of its divisors is an integer number (25301983).

Almost surely, 2^144582740 is an apocalyptic number.

144582740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144582740 is an abundant number, since it is smaller than the sum of its proper divisors (159041056).

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

144582740 is a wasteful number, since it uses less digits than its factorization.

144582740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229146 (or 7229144 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 144582740 is about 12024.2563179600. The cubic root of 144582740 is about 524.8543692819.

The spelling of 144582740 in words is "one hundred forty-four million, five hundred eighty-two thousand, seven hundred forty".