144389070 has 48 divisors (see below), whose sum is σ = 429043680. Its totient is φ = 33003072.

The previous prime is 144389053. The next prime is 144389081. The reversal of 144389070 is 70983441.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113965 + ... + 115224.

It is an arithmetic number, because the mean of its divisors is an integer number (8938410).

Almost surely, 2^144389070 is an apocalyptic number.

144389070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144389070 is an abundant number, since it is smaller than the sum of its proper divisors (284654610).

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

144389070 is a wasteful number, since it uses less digits than its factorization.

144389070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229209 (or 229206 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 144389070 is about 12016.2003145753. The cubic root of 144389070 is about 524.6199153725.

The spelling of 144389070 in words is "one hundred forty-four million, three hundred eighty-nine thousand, seventy".