144439552 has 72 divisors (see below), whose sum is σ = 299486880. Its totient is φ = 69488640.

The previous prime is 144439549. The next prime is 144439567. The reversal of 144439552 is 255934441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102527 + ... + 1102657.

It is an arithmetic number, because the mean of its divisors is an integer number (4159540).

Almost surely, 2^144439552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144439552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149743440).

144439552 is an abundant number, since it is smaller than the sum of its proper divisors (155047328).

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

144439552 is an equidigital number, since it uses as much as digits as its factorization.

144439552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 265 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 144439552 is about 12018.3007118311. The cubic root of 144439552 is about 524.6810482931.

It can be divided in two parts, 144439 and 552, that added together give a triangular number (144991 = T₅₃₈).

The spelling of 144439552 in words is "one hundred forty-four million, four hundred thirty-nine thousand, five hundred fifty-two".