144433140 has 24 divisors (see below), whose sum is σ = 404412960. Its totient is φ = 38515488.

The previous prime is 144433129. The next prime is 144433153. The reversal of 144433140 is 41334441.

It is a self number, because there is not a number n which added to its sum of digits gives 144433140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203550 + ... + 1203669.

It is an arithmetic number, because the mean of its divisors is an integer number (16850540).

Almost surely, 2^144433140 is an apocalyptic number.

144433140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144433140 is an abundant number, since it is smaller than the sum of its proper divisors (259979820).

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

144433140 is a wasteful number, since it uses less digits than its factorization.

144433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407231 (or 2407229 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 144433140 is about 12018.0339490284. The cubic root of 144433140 is about 524.6732842502.

Adding to 144433140 its reverse (41334441), we get a palindrome (185767581).

The spelling of 144433140 in words is "one hundred forty-four million, four hundred thirty-three thousand, one hundred forty".