543535400240 has 80 divisors (see below), whose sum is σ = 1461651948288. Its totient is φ = 184109737728.

The previous prime is 543535400231. The next prime is 543535400267. The reversal of 543535400240 is 42004535345.

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

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 543535400240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5800502 + ... + 5893461.

Almost surely, 2^543535400240 is an apocalyptic number.

It is an amenable number.

543535400240 is an abundant number, since it is smaller than the sum of its proper divisors (918116548048).

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

543535400240 is a wasteful number, since it uses less digits than its factorization.

543535400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694066 (or 11694060 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 543535400240 its reverse (42004535345), we get a palindrome (585539935585).

The spelling of 543535400240 in words is "five hundred forty-three billion, five hundred thirty-five million, four hundred thousand, two hundred forty".