240321542041540 has 24 divisors (see below), whose sum is σ = 505127051439192. Its totient is φ = 96042557168640.

The previous prime is 240321542041481. The next prime is 240321542041681. The reversal of 240321542041540 is 45140245123042.

It can be written as a sum of positive squares in 4 ways, for example, as 8718921539524 + 231602620502016 = 2952782^2 + 15218496^2 .

It is a super-2 number, since 2×240321542041540² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240321542041540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5378705101 + ... + 5378749780.

It is an arithmetic number, because the mean of its divisors is an integer number (21046960476633).

Almost surely, 2^{240321542041540} is an apocalyptic number.

240321542041540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240321542041540 is an abundant number, since it is smaller than the sum of its proper divisors (264805509397652).

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

240321542041540 is a wasteful number, since it uses less digits than its factorization.

240321542041540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757456007 (or 10757456005 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 240321542041540 its reverse (45140245123042), we get a palindrome (285461787164582).

The spelling of 240321542041540 in words is "two hundred forty trillion, three hundred twenty-one billion, five hundred forty-two million, forty-one thousand, five hundred forty".