144239472 has 90 divisors (see below), whose sum is σ = 437184072. Its totient is φ = 44373888.

The previous prime is 144239467. The next prime is 144239519. The reversal of 144239472 is 274932441.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21373 + ... + 27299.

Almost surely, 2^144239472 is an apocalyptic number.

144239472 is a gapful number since it is divisible by the number (12) 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 144239472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218592036).

144239472 is an abundant number, since it is smaller than the sum of its proper divisors (292944600).

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

144239472 is a wasteful number, since it uses less digits than its factorization.

144239472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967 (or 5945 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 144239472 is about 12009.9738550923. The cubic root of 144239472 is about 524.4386707899.

The spelling of 144239472 in words is "one hundred forty-four million, two hundred thirty-nine thousand, four hundred seventy-two".