144511040 has 56 divisors (see below), whose sum is σ = 345472512. Its totient is φ = 57576960.

The previous prime is 144511039. The next prime is 144511043. The reversal of 144511040 is 40115441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (144511043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97505 + ... + 98975.

It is an arithmetic number, because the mean of its divisors is an integer number (6169152).

Almost surely, 2^144511040 is an apocalyptic number.

144511040 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 144511040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172736256).

144511040 is an abundant number, since it is smaller than the sum of its proper divisors (200961472).

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

144511040 is a wasteful number, since it uses less digits than its factorization.

144511040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 144511040 is about 12021.2744748633. The cubic root of 144511040 is about 524.7675947917.

Adding to 144511040 its reverse (40115441), we get a palindrome (184626481).

The spelling of 144511040 in words is "one hundred forty-four million, five hundred eleven thousand, forty".