845992242 has 16 divisors (see below), whose sum is σ = 1879982880. Its totient is φ = 281997396.

The previous prime is 845992219. The next prime is 845992247. The reversal of 845992242 is 242299548.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (845992247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833208 + ... + 7833315.

It is an arithmetic number, because the mean of its divisors is an integer number (117498930).

Almost surely, 2^845992242 is an apocalyptic number.

845992242 is an abundant number, since it is smaller than the sum of its proper divisors (1033990638).

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

845992242 is a wasteful number, since it uses less digits than its factorization.

845992242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15666534 (or 15666528 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 845992242 is about 29085.9457814251. The cubic root of 845992242 is about 945.7770982619. Note that the first 3 decimals are identical.

The spelling of 845992242 in words is "eight hundred forty-five million, nine hundred ninety-two thousand, two hundred forty-two".