2040202420 has 24 divisors (see below), whose sum is σ = 4285366344. Its totient is φ = 815901696.

The previous prime is 2040202399. The next prime is 2040202469. The reversal of 2040202420 is 242020402.

It can be written as a sum of positive squares in 4 ways, for example, as 155600676 + 1884601744 = 12474^2 + 43412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2040202394 and 2040202403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119032 + ... + 135088.

It is an arithmetic number, because the mean of its divisors is an integer number (178556931).

Almost surely, 2^2040202420 is an apocalyptic number.

2040202420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040202420 is an abundant number, since it is smaller than the sum of its proper divisors (2245163924).

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

2040202420 is a wasteful number, since it uses less digits than its factorization.

2040202420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22419 (or 22417 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2040202420 is about 45168.5999340250. The cubic root of 2040202420 is about 1268.3070877664.

Adding to 2040202420 its reverse (242020402), we get a palindrome (2282222822).

It can be divided in two parts, 204020 and 2420, that multiplied together give a square (493728400 = 22220²).

The spelling of 2040202420 in words is "two billion, forty million, two hundred two thousand, four hundred twenty".