202040311842 has 48 divisors (see below), whose sum is σ = 465905957400. Its totient is φ = 63056756736.

The previous prime is 202040311831. The next prime is 202040311849. The reversal of 202040311842 is 248113040202.

202040311842 is a `hidden beast` number, since 202 + 0 + 403 + 1 + 18 + 42 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 199452453201 + 2587858641 = 446601^2 + 50871^2 .

It is not an unprimeable number, because it can be changed into a prime (202040311849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1651467 + ... + 1769582.

Almost surely, 2^202040311842 is an apocalyptic number.

202040311842 is an abundant number, since it is smaller than the sum of its proper divisors (263865645558).

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

202040311842 is a wasteful number, since it uses less digits than its factorization.

202040311842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421267 (or 3421264 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 202040311842 in words is "two hundred two billion, forty million, three hundred eleven thousand, eight hundred forty-two".