144918228 has 48 divisors (see below), whose sum is σ = 416178560. Its totient is φ = 38219904.

The previous prime is 144918223. The next prime is 144918229. The reversal of 144918228 is 822819441.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144918223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65263 + ... + 67446.

Almost surely, 2^144918228 is an apocalyptic number.

It is an amenable number.

144918228 is an abundant number, since it is smaller than the sum of its proper divisors (271260332).

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

144918228 is a wasteful number, since it uses less digits than its factorization.

144918228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132736 (or 132734 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 144918228 is about 12038.1987024638. The cubic root of 144918228 is about 525.2600108886.

The spelling of 144918228 in words is "one hundred forty-four million, nine hundred eighteen thousand, two hundred twenty-eight".