40204001124020 has 12 divisors (see below), whose sum is σ = 84428402360484. Its totient is φ = 16081600449600.

The previous prime is 40204001123929. The next prime is 40204001124041. The reversal of 40204001124020 is 2042110040204.

It can be written as a sum of positive squares in 2 ways, for example, as 10639574090896 + 29564427033124 = 3261836^2 + 5437318^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2010200056201 = 40204001124020 / (4 + 0 + 2 + 0 + 4 + 0 + 0 + 1 + 1 + 2 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 40204001123983 and 40204001124001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005100028081 + ... + 1005100028120.

It is an arithmetic number, because the mean of its divisors is an integer number (7035700196707).

Almost surely, 2^{40204001124020} is an apocalyptic number.

It is an amenable number.

40204001124020 is an abundant number, since it is smaller than the sum of its proper divisors (44224401236464).

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

40204001124020 is a wasteful number, since it uses less digits than its factorization.

40204001124020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010200056210 (or 2010200056208 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 40204001124020 its reverse (2042110040204), we get a palindrome (42246111164224).

The spelling of 40204001124020 in words is "forty trillion, two hundred four billion, one million, one hundred twenty-four thousand, twenty".