845528442 has 64 divisors (see below), whose sum is σ = 1894164480. Its totient is φ = 249451200.

The previous prime is 845528429. The next prime is 845528447. The reversal of 845528442 is 244825548.

It is a junction number, because it is equal to n+sod(n) for n = 845528394 and 845528403.

It is not an unprimeable number, because it can be changed into a prime (845528447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413659 + ... + 415697.

It is an arithmetic number, because the mean of its divisors is an integer number (29596320).

Almost surely, 2^845528442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845528442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (947082240).

845528442 is an abundant number, since it is smaller than the sum of its proper divisors (1048636038).

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

845528442 is a wasteful number, since it uses less digits than its factorization.

845528442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its digits is 409600, while the sum is 42.

The square root of 845528442 is about 29077.9717655823. The cubic root of 845528442 is about 945.6042315847.

The spelling of 845528442 in words is "eight hundred forty-five million, five hundred twenty-eight thousand, four hundred forty-two".