1845223044 has 192 divisors, whose sum is σ = 5461327872. Its totient is φ = 472780800.

The previous prime is 1845223043. The next prime is 1845223073. The reversal of 1845223044 is 4403225481.

It is a junction number, because it is equal to n+sod(n) for n = 1845222996 and 1845223014.

It is not an unprimeable number, because it can be changed into a prime (1845223043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3231279 + ... + 3231849.

It is an arithmetic number, because the mean of its divisors is an integer number (28444416).

Almost surely, 2^1845223044 is an apocalyptic number.

1845223044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1845223044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730663936).

1845223044 is an abundant number, since it is smaller than the sum of its proper divisors (3616104828).

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

1845223044 is a wasteful number, since it uses less digits than its factorization.

1845223044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 1845223044 is about 42956.0594561466. The cubic root of 1845223044 is about 1226.5435035382.

The spelling of 1845223044 in words is "one billion, eight hundred forty-five million, two hundred twenty-three thousand, forty-four".