144917808 has 80 divisors (see below), whose sum is σ = 441686016. Its totient is φ = 40066560.

The previous prime is 144917771. The next prime is 144917827. The reversal of 144917808 is 808719441.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 144917808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3460 + ... + 17372.

Almost surely, 2^144917808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144917808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220843008).

144917808 is an abundant number, since it is smaller than the sum of its proper divisors (296768208).

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

144917808 is a wasteful number, since it uses less digits than its factorization.

144917808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962 (or 13956 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 144917808 is about 12038.1812579808. The cubic root of 144917808 is about 525.2595034543.

The spelling of 144917808 in words is "one hundred forty-four million, nine hundred seventeen thousand, eight hundred eight".