2040424242440 has 64 divisors (see below), whose sum is σ = 4610270174400. Its totient is φ = 812742481152.

The previous prime is 2040424242421. The next prime is 2040424242469. The reversal of 2040424242440 is 442424240402.

It is a junction number, because it is equal to n+sod(n) for n = 2040424242397 and 2040424242406.

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, 9728519 + ... + 9936041.

It is an arithmetic number, because the mean of its divisors is an integer number (72035471475).

Almost surely, 2^{2040424242440} is an apocalyptic number.

2040424242440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040424242440 is an abundant number, since it is smaller than the sum of its proper divisors (2569845931960).

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

2040424242440 is a wasteful number, since it uses less digits than its factorization.

2040424242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208566 (or 208562 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 2040424242440 its reverse (442424240402), we get a palindrome (2482848482842).

The spelling of 2040424242440 in words is "two trillion, forty billion, four hundred twenty-four million, two hundred forty-two thousand, four hundred forty".