4540040272240 has 80 divisors (see below), whose sum is σ = 11517766003296. Its totient is φ = 1650554854400.

The previous prime is 4540040272223. The next prime is 4540040272307. The reversal of 4540040272240 is 422720400454.

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

It is a super-2 number, since 2×4540040272240² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4540040272196 and 4540040272205.

It is a congruent number.

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, 3379710 + ... + 4527970.

Almost surely, 2^{4540040272240} is an apocalyptic number.

4540040272240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4540040272240 is an abundant number, since it is smaller than the sum of its proper divisors (6977725731056).

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

4540040272240 is a wasteful number, since it uses less digits than its factorization.

4540040272240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152778 (or 1152772 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 34.

Adding to 4540040272240 its reverse (422720400454), we get a palindrome (4962760672694).

The spelling of 4540040272240 in words is "four trillion, five hundred forty billion, forty million, two hundred seventy-two thousand, two hundred forty".