845640050 has 12 divisors (see below), whose sum is σ = 1572890586. Its totient is φ = 338256000.

The previous prime is 845640043. The next prime is 845640067. The reversal of 845640050 is 50046548.

It can be written as a sum of positive squares in 3 ways, for example, as 763030129 + 82609921 = 27623^2 + 9089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 845639989 and 845640016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8456351 + ... + 8456450.

Almost surely, 2^845640050 is an apocalyptic number.

845640050 is a deficient number, since it is larger than the sum of its proper divisors (727250536).

845640050 is a wasteful number, since it uses less digits than its factorization.

845640050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16912813 (or 16912808 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 845640050 is about 29079.8908182269. The cubic root of 845640050 is about 945.6458356864.

Adding to 845640050 its reverse (50046548), we get a palindrome (895686598).

The spelling of 845640050 in words is "eight hundred forty-five million, six hundred forty thousand, fifty".