845265042 has 24 divisors (see below), whose sum is σ = 1911034944. Its totient is φ = 269504664.

The previous prime is 845265023. The next prime is 845265049. The reversal of 845265042 is 240562548.

It is a happy number.

845265042 is a `hidden beast` number, since 84 + 526 + 50 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 845264988 and 845265006.

It is not an unprimeable number, because it can be changed into a prime (845265049) 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 11 ways as a sum of consecutive naturals, for example, 1020438 + ... + 1021265.

It is an arithmetic number, because the mean of its divisors is an integer number (79626456).

Almost surely, 2^845265042 is an apocalyptic number.

845265042 is an abundant number, since it is smaller than the sum of its proper divisors (1065769902).

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

845265042 is a wasteful number, since it uses less digits than its factorization.

845265042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041734 (or 2041731 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 845265042 is about 29073.4422110627. The cubic root of 845265042 is about 945.5060294780.

The spelling of 845265042 in words is "eight hundred forty-five million, two hundred sixty-five thousand, forty-two".