845818446 has 64 divisors (see below), whose sum is σ = 1956612096. Its totient is φ = 241315200.

The previous prime is 845818429. The next prime is 845818481. The reversal of 845818446 is 644818548.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 845818395 and 845818404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70116 + ... + 81288.

It is an arithmetic number, because the mean of its divisors is an integer number (30572064).

Almost surely, 2^845818446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845818446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978306048).

845818446 is an abundant number, since it is smaller than the sum of its proper divisors (1110793650).

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

845818446 is a wasteful number, since it uses less digits than its factorization.

845818446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257.

The product of its digits is 983040, while the sum is 48.

The square root of 845818446 is about 29082.9579994883. The cubic root of 845818446 is about 945.7123287421.

The spelling of 845818446 in words is "eight hundred forty-five million, eight hundred eighteen thousand, four hundred forty-six".