144236560 has 80 divisors (see below), whose sum is σ = 363101760. Its totient is φ = 52968960.

The previous prime is 144236557. The next prime is 144236563. The reversal of 144236560 is 65632441.

It is an interprime number because it is at equal distance from previous prime (144236557) and next prime (144236563).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (144236563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344031 + ... + 344449.

It is an arithmetic number, because the mean of its divisors is an integer number (4538772).

Almost surely, 2^144236560 is an apocalyptic number.

144236560 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 144236560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181550880).

144236560 is an abundant number, since it is smaller than the sum of its proper divisors (218865200).

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

144236560 is a wasteful number, since it uses less digits than its factorization.

144236560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 144236560 is about 12009.8526219101. The cubic root of 144236560 is about 524.4351415301.

The spelling of 144236560 in words is "one hundred forty-four million, two hundred thirty-six thousand, five hundred sixty".