144376540 has 144 divisors (see below), whose sum is σ = 392999040. Its totient is φ = 44042880.

The previous prime is 144376537. The next prime is 144376549. The reversal of 144376540 is 45673441.

It is a junction number, because it is equal to n+sod(n) for n = 144376496 and 144376505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144376549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 635907 + ... + 636133.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160).

Almost surely, 2^144376540 is an apocalyptic number.

144376540 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 144376540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196499520).

144376540 is an abundant number, since it is smaller than the sum of its proper divisors (248622500).

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

144376540 is a wasteful number, since it uses less digits than its factorization.

144376540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 144376540 is about 12015.6789238062. The cubic root of 144376540 is about 524.6047395292.

The spelling of 144376540 in words is "one hundred forty-four million, three hundred seventy-six thousand, five hundred forty".