144628218 has 24 divisors (see below), whose sum is σ = 358127328. Its totient is φ = 41322312.

The previous prime is 144628213. The next prime is 144628219. The reversal of 144628218 is 812826441.

144628218 is a `hidden beast` number, since 1 + 4 + 4 + 628 + 21 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (144628213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573796 + ... + 574047.

It is an arithmetic number, because the mean of its divisors is an integer number (14921972).

Almost surely, 2^144628218 is an apocalyptic number.

144628218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144628218 is an abundant number, since it is smaller than the sum of its proper divisors (213499110).

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

144628218 is a wasteful number, since it uses less digits than its factorization.

144628218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147858 (or 1147855 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 144628218 is about 12026.1472633591. The cubic root of 144628218 is about 524.9093938876.

The spelling of 144628218 in words is "one hundred forty-four million, six hundred twenty-eight thousand, two hundred eighteen".