144078820 has 12 divisors (see below), whose sum is σ = 302565564. Its totient is φ = 57631520.

The previous prime is 144078811. The next prime is 144078827. The reversal of 144078820 is 28870441.

It can be written as a sum of positive squares in 2 ways, for example, as 57365476 + 86713344 = 7574^2 + 9312^2 .

It is not an unprimeable number, because it can be changed into a prime (144078827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601951 + ... + 3601990.

It is an arithmetic number, because the mean of its divisors is an integer number (25213797).

Almost surely, 2^144078820 is an apocalyptic number.

144078820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144078820 is an abundant number, since it is smaller than the sum of its proper divisors (158486744).

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

144078820 is a wasteful number, since it uses less digits than its factorization.

144078820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7203950 (or 7203948 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 144078820 is about 12003.2837173833. The cubic root of 144078820 is about 524.2438941933.

The spelling of 144078820 in words is "one hundred forty-four million, seventy-eight thousand, eight hundred twenty".