144663860 has 48 divisors (see below), whose sum is σ = 334877760. Its totient is φ = 52055040.

The previous prime is 144663839. The next prime is 144663877. The reversal of 144663860 is 68366441.

144663860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 17951 + ... + 24729.

It is an arithmetic number, because the mean of its divisors is an integer number (6976620).

Almost surely, 2^144663860 is an apocalyptic number.

144663860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144663860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167438880).

144663860 is an abundant number, since it is smaller than the sum of its proper divisors (190213900).

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

144663860 is a wasteful number, since it uses less digits than its factorization.

144663860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896 (or 6894 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 144663860 is about 12027.6290265372. The cubic root of 144663860 is about 524.9525096876.

The spelling of 144663860 in words is "one hundred forty-four million, six hundred sixty-three thousand, eight hundred sixty".