144408779 has 8 divisors (see below), whose sum is σ = 146227200. Its totient is φ = 142601256.

The previous prime is 144408773. The next prime is 144408799. The reversal of 144408779 is 977804441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144408779 - 2⁴ = 144408763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144408773) 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, 25772 + ... + 30870.

It is an arithmetic number, because the mean of its divisors is an integer number (18278400).

Almost surely, 2^144408779 is an apocalyptic number.

144408779 is a deficient number, since it is larger than the sum of its proper divisors (1818421).

144408779 is a wasteful number, since it uses less digits than its factorization.

144408779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 144408779 is about 12017.0203877667. The cubic root of 144408779 is about 524.6437843617.

The spelling of 144408779 in words is "one hundred forty-four million, four hundred eight thousand, seven hundred seventy-nine".