144552450440 has 64 divisors (see below), whose sum is σ = 344737859760. Its totient is φ = 54362398720.

The previous prime is 144552450437. The next prime is 144552450461. The reversal of 144552450440 is 44054255441.

It can be written as a sum of positive squares in 8 ways, for example, as 68831720164 + 75720730276 = 262358^2 + 275174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144552450394 and 144552450403.

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, 536510 + ... + 759570.

Almost surely, 2^144552450440 is an apocalyptic number.

144552450440 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 144552450440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172368929880).

144552450440 is an abundant number, since it is smaller than the sum of its proper divisors (200185409320).

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

144552450440 is a wasteful number, since it uses less digits than its factorization.

144552450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224042 (or 224038 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

The spelling of 144552450440 in words is "one hundred forty-four billion, five hundred fifty-two million, four hundred fifty thousand, four hundred forty".