240554231312440 has 64 divisors (see below), whose sum is σ = 564787642152960. Its totient is φ = 92036813742720.

The previous prime is 240554231312411. The next prime is 240554231312441. The reversal of 240554231312440 is 44213132455042.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 240554231312393 and 240554231312402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240554231312441) 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, 63182535 + ... + 66881545.

It is an arithmetic number, because the mean of its divisors is an integer number (8824806908640).

Almost surely, 2^{240554231312440} is an apocalyptic number.

240554231312440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240554231312440 is an abundant number, since it is smaller than the sum of its proper divisors (324233410840520).

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

240554231312440 is a wasteful number, since it uses less digits than its factorization.

240554231312440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769732 (or 3769728 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 240554231312440 its reverse (44213132455042), we get a palindrome (284767363767482).

The spelling of 240554231312440 in words is "two hundred forty trillion, five hundred fifty-four billion, two hundred thirty-one million, three hundred twelve thousand, four hundred forty".