2040420442402 has 16 divisors (see below), whose sum is σ = 3244860128952. Its totient is φ = 958955672320.

The previous prime is 2040420442397. The next prime is 2040420442439. The reversal of 2040420442402 is 2042440240402.

It can be written as a sum of positive squares in 4 ways, for example, as 1896186834441 + 144233607961 = 1377021^2 + 379781^2 .

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, 38791549 + ... + 38844112.

Almost surely, 2^{2040420442402} is an apocalyptic number.

2040420442402 is a deficient number, since it is larger than the sum of its proper divisors (1204439686550).

2040420442402 is a wasteful number, since it uses less digits than its factorization.

2040420442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77636453.

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

Adding to 2040420442402 its reverse (2042440240402), we get a palindrome (4082860682804).

The spelling of 2040420442402 in words is "two trillion, forty billion, four hundred twenty million, four hundred forty-two thousand, four hundred two".