144689874 has 64 divisors (see below), whose sum is σ = 344355840. Its totient is φ = 39654720.

The previous prime is 144689851. The next prime is 144689879. The reversal of 144689874 is 478986441.

It is not an unprimeable number, because it can be changed into a prime (144689879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256717 + ... + 257279.

It is an arithmetic number, because the mean of its divisors is an integer number (5380560).

Almost surely, 2^144689874 is an apocalyptic number.

144689874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144689874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172177920).

144689874 is an abundant number, since it is smaller than the sum of its proper divisors (199665966).

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

144689874 is a wasteful number, since it uses less digits than its factorization.

144689874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its digits is 1548288, while the sum is 51.

The square root of 144689874 is about 12028.7104046943. The cubic root of 144689874 is about 524.9839741140.

It can be divided in two parts, 14468 and 9874, that added together give a palindrome (24342).

The spelling of 144689874 in words is "one hundred forty-four million, six hundred eighty-nine thousand, eight hundred seventy-four".