144869418 has 16 divisors (see below), whose sum is σ = 321932160. Its totient is φ = 48289788.

The previous prime is 144869411. The next prime is 144869423. The reversal of 144869418 is 814968441.

It is not an unprimeable number, because it can be changed into a prime (144869411) 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, 1341330 + ... + 1341437.

It is an arithmetic number, because the mean of its divisors is an integer number (20120760).

Almost surely, 2^144869418 is an apocalyptic number.

144869418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144869418 is an abundant number, since it is smaller than the sum of its proper divisors (177062742).

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

144869418 is a wasteful number, since it uses less digits than its factorization.

144869418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682778 (or 2682772 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 144869418 is about 12036.1712350731. The cubic root of 144869418 is about 525.2010332145.

The spelling of 144869418 in words is "one hundred forty-four million, eight hundred sixty-nine thousand, four hundred eighteen".