842505136 has 20 divisors (see below), whose sum is σ = 1780749864. Its totient is φ = 382956800.

The previous prime is 842505121. The next prime is 842505137. The reversal of 842505136 is 631505248.

It is not an unprimeable number, because it can be changed into a prime (842505137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393305 + ... + 2393656.

Almost surely, 2^842505136 is an apocalyptic number.

It is an amenable number.

842505136 is an abundant number, since it is smaller than the sum of its proper divisors (938244728).

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

842505136 is a wasteful number, since it uses less digits than its factorization.

842505136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786980 (or 4786974 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 842505136 is about 29025.9390201247. The cubic root of 842505136 is about 944.4758385791.

The spelling of 842505136 in words is "eight hundred forty-two million, five hundred five thousand, one hundred thirty-six".