842890136 has 32 divisors (see below), whose sum is σ = 1766152080. Its totient is φ = 373785600.

The previous prime is 842890127. The next prime is 842890157. The reversal of 842890136 is 631098248.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 842890093 and 842890102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113201 + ... + 120416.

Almost surely, 2^842890136 is an apocalyptic number.

It is an amenable number.

842890136 is an abundant number, since it is smaller than the sum of its proper divisors (923261944).

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

842890136 is a wasteful number, since it uses less digits than its factorization.

842890136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233675 (or 233671 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 842890136 is about 29032.5702616906. The cubic root of 842890136 is about 944.6196825385.

The spelling of 842890136 in words is "eight hundred forty-two million, eight hundred ninety thousand, one hundred thirty-six".