2040450042420 has 72 divisors (see below), whose sum is σ = 6197607037440. Its totient is φ = 543395448000.

The previous prime is 2040450042347. The next prime is 2040450042427. The reversal of 2040450042420 is 242400540402.

2040450042420 is a `hidden beast` number, since 204 + 0 + 450 + 0 + 4 + 2 + 4 + 2 + 0 = 666.

It is a super-2 number, since 2×2040450042420² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040450042427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7411980 + ... + 7682339.

It is an arithmetic number, because the mean of its divisors is an integer number (86077875520).

Almost surely, 2^{2040450042420} is an apocalyptic number.

2040450042420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040450042420 is an abundant number, since it is smaller than the sum of its proper divisors (4157156995020).

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

2040450042420 is a wasteful number, since it uses less digits than its factorization.

2040450042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15095085 (or 15095080 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 2040450042420 its reverse (242400540402), we get a palindrome (2282850582822).

The spelling of 2040450042420 in words is "two trillion, forty billion, four hundred fifty million, forty-two thousand, four hundred twenty".