1845442224 has 80 divisors (see below), whose sum is σ = 5371799040. Its totient is φ = 606473280.

The previous prime is 1845442217. The next prime is 1845442253. The reversal of 1845442224 is 4222445481.

1845442224 is a `hidden beast` number, since 184 + 54 + 422 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589 + ... + 60755.

It is an arithmetic number, because the mean of its divisors is an integer number (67147488).

Almost surely, 2^1845442224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1845442224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685899520).

1845442224 is an abundant number, since it is smaller than the sum of its proper divisors (3526356816).

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

1845442224 is a wasteful number, since it uses less digits than its factorization.

1845442224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60255 (or 60243 counting only the distinct ones).

The product of its digits is 81920, while the sum is 36.

The square root of 1845442224 is about 42958.6105920571. The cubic root of 1845442224 is about 1226.5920655377.

The spelling of 1845442224 in words is "one billion, eight hundred forty-five million, four hundred forty-two thousand, two hundred twenty-four".