144546240 has 168 divisors, whose sum is σ = 488454192. Its totient is φ = 36208640.

The previous prime is 144546209. The next prime is 144546247. The reversal of 144546240 is 42645441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 144546198 and 144546207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144546247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277180 + ... + 277700.

Almost surely, 2^144546240 is an apocalyptic number.

144546240 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 144546240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244227096).

144546240 is an abundant number, since it is smaller than the sum of its proper divisors (343907952).

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

144546240 is a wasteful number, since it uses less digits than its factorization.

144546240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 144546240 is about 12022.7384567743. The cubic root of 144546240 is about 524.8101989640.

The spelling of 144546240 in words is "one hundred forty-four million, five hundred forty-six thousand, two hundred forty".