4320401144240 has 80 divisors (see below), whose sum is σ = 10084514255136. Its totient is φ = 1721355417600.

The previous prime is 4320401144239. The next prime is 4320401144249. The reversal of 4320401144240 is 424411040234.

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 (4320401144249) 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, 61357694 + ... + 61428066.

Almost surely, 2^{4320401144240} is an apocalyptic number.

4320401144240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4320401144240 is an abundant number, since it is smaller than the sum of its proper divisors (5764113110896).

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

4320401144240 is a wasteful number, since it uses less digits than its factorization.

4320401144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73398 (or 73392 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 4320401144240 its reverse (424411040234), we get a palindrome (4744812184474).

The spelling of 4320401144240 in words is "four trillion, three hundred twenty billion, four hundred one million, one hundred forty-four thousand, two hundred forty".