20202242044240 has 40 divisors (see below), whose sum is σ = 47041272199368. Its totient is φ = 8068671536640.

The previous prime is 20202242044219. The next prime is 20202242044301. The reversal of 20202242044240 is 4244024220202.

It can be written as a sum of positive squares in 4 ways, for example, as 6108134303296 + 14094107740944 = 2471464^2 + 3754212^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20202242044240² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202242044199 and 20202242044208.

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, 190966807 + ... + 191072566.

Almost surely, 2^{20202242044240} is an apocalyptic number.

20202242044240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202242044240 is an abundant number, since it is smaller than the sum of its proper divisors (26839030155128).

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

20202242044240 is a wasteful number, since it uses less digits than its factorization.

20202242044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382040047 (or 382040041 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 20202242044240 its reverse (4244024220202), we get a palindrome (24446266264442).

The spelling of 20202242044240 in words is "twenty trillion, two hundred two billion, two hundred forty-two million, forty-four thousand, two hundred forty".