1845884916 has 96 divisors (see below), whose sum is σ = 4996992000. Its totient is φ = 588518784.

The previous prime is 1845884899. The next prime is 1845884917. The reversal of 1845884916 is 6194885481.

It is a happy number.

1845884916 is a `hidden beast` number, since 1 + 8 + 4 + 588 + 49 + 16 = 666.

It is a super-2 number, since 2×1845884916² = 6814582246232654112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845884917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338685 + ... + 344091.

It is an arithmetic number, because the mean of its divisors is an integer number (52052000).

Almost surely, 2^1845884916 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 1845884916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2498496000).

1845884916 is an abundant number, since it is smaller than the sum of its proper divisors (3151107084).

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

1845884916 is a wasteful number, since it uses less digits than its factorization.

1845884916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558 (or 5550 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 1845884916 is about 42963.7628240358. The cubic root of 1845884916 is about 1226.6901376193.

The spelling of 1845884916 in words is "one billion, eight hundred forty-five million, eight hundred eighty-four thousand, nine hundred sixteen".