1841805944 has 32 divisors (see below), whose sum is σ = 3771163440. Its totient is φ = 836332800.

The previous prime is 1841805941. The next prime is 1841805989. The reversal of 1841805944 is 4495081481.

It is a super-2 number, since 2×1841805944² = 6784498270707462272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1841805895 and 1841805904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1841805941) 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 7 ways as a sum of consecutive naturals, for example, 80774 + ... + 101034.

Almost surely, 2^1841805944 is an apocalyptic number.

It is an amenable number.

1841805944 is an abundant number, since it is smaller than the sum of its proper divisors (1929357496).

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

1841805944 is a wasteful number, since it uses less digits than its factorization.

1841805944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311 (or 21307 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 1841805944 is about 42916.2666596245. The cubic root of 1841805944 is about 1225.7859055748.

The spelling of 1841805944 in words is "one billion, eight hundred forty-one million, eight hundred five thousand, nine hundred forty-four".