202042601840 has 20 divisors (see below), whose sum is σ = 469749049464. Its totient is φ = 80817040704.

The previous prime is 202042601797. The next prime is 202042601843. The reversal of 202042601840 is 48106240202.

202042601840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202042601843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262766182 + ... + 1262766341.

Almost surely, 2^202042601840 is an apocalyptic number.

202042601840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202042601840 is an abundant number, since it is smaller than the sum of its proper divisors (267706447624).

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

202042601840 is a wasteful number, since it uses less digits than its factorization.

202042601840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525532536 (or 2525532530 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 202042601840 in words is "two hundred two billion, forty-two million, six hundred one thousand, eight hundred forty".