845608042 has 8 divisors (see below), whose sum is σ = 1312150500. Its totient is φ = 408224544.

The previous prime is 845608039. The next prime is 845608063. The reversal of 845608042 is 240806548.

It can be written as a sum of positive squares in 2 ways, for example, as 766237761 + 79370281 = 27681^2 + 8909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 845607992 and 845608010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7289667 + ... + 7289782.

Almost surely, 2^845608042 is an apocalyptic number.

845608042 is a deficient number, since it is larger than the sum of its proper divisors (466542458).

845608042 is a wasteful number, since it uses less digits than its factorization.

845608042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579480.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 845608042 is about 29079.3404670739. The cubic root of 845608042 is about 945.6339044422.

The spelling of 845608042 in words is "eight hundred forty-five million, six hundred eight thousand, forty-two".