144245040 has 40 divisors (see below), whose sum is σ = 447160368. Its totient is φ = 38465280.

The previous prime is 144245027. The next prime is 144245047. The reversal of 144245040 is 40542441.

It is a happy number.

144245040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 144245040.

It is not an unprimeable number, because it can be changed into a prime (144245047) 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, 300271 + ... + 300750.

Almost surely, 2^144245040 is an apocalyptic number.

144245040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144245040 is an abundant number, since it is smaller than the sum of its proper divisors (302915328).

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

144245040 is a wasteful number, since it uses less digits than its factorization.

144245040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601037 (or 601031 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 144245040 is about 12010.2056601875. The cubic root of 144245040 is about 524.4454189125.

Adding to 144245040 its reverse (40542441), we get a palindrome (184787481).

The spelling of 144245040 in words is "one hundred forty-four million, two hundred forty-five thousand, forty".