144041240 has 32 divisors (see below), whose sum is σ = 370392480. Its totient is φ = 49385472.

The previous prime is 144041239. The next prime is 144041257. The reversal of 144041240 is 42140441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 256937 + ... + 257496.

It is an arithmetic number, because the mean of its divisors is an integer number (11574765).

Almost surely, 2^144041240 is an apocalyptic number.

144041240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144041240 is an abundant number, since it is smaller than the sum of its proper divisors (226351240).

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

144041240 is a wasteful number, since it uses less digits than its factorization.

144041240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514451 (or 514447 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144041240 is about 12001.7182103231. The cubic root of 144041240 is about 524.1983108136.

Adding to 144041240 its reverse (42140441), we get a palindrome (186181681).

The spelling of 144041240 in words is "one hundred forty-four million, forty-one thousand, two hundred forty".