845140228 has 24 divisors (see below), whose sum is σ = 1528862720. Its totient is φ = 408360960.

The previous prime is 845140213. The next prime is 845140253. The reversal of 845140228 is 822041548.

It is a junction number, because it is equal to n+sod(n) for n = 845140193 and 845140202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90925 + ... + 99787.

Almost surely, 2^845140228 is an apocalyptic number.

It is an amenable number.

845140228 is a deficient number, since it is larger than the sum of its proper divisors (683722492).

845140228 is a wasteful number, since it uses less digits than its factorization.

845140228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9667 (or 9665 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 845140228 is about 29071.2956023635. The cubic root of 845140228 is about 945.4594885735.

The spelling of 845140228 in words is "eight hundred forty-five million, one hundred forty thousand, two hundred twenty-eight".