1841914221 has 32 divisors (see below), whose sum is σ = 2944081920. Its totient is φ = 1001493504.

The previous prime is 1841914189. The next prime is 1841914231. The reversal of 1841914221 is 1224191481.

It is not a de Polignac number, because 1841914221 - 2⁵ = 1841914189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1841914231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83340 + ... + 103098.

It is an arithmetic number, because the mean of its divisors is an integer number (92002560).

Almost surely, 2^1841914221 is an apocalyptic number.

It is an amenable number.

1841914221 is a deficient number, since it is larger than the sum of its proper divisors (1102167699).

1841914221 is a wasteful number, since it uses less digits than its factorization.

1841914221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19985.

The product of its digits is 4608, while the sum is 33.

The square root of 1841914221 is about 42917.5281324542. The cubic root of 1841914221 is about 1225.8099258071.

It can be divided in two parts, 18419 and 14221, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 1841914221 in words is "one billion, eight hundred forty-one million, nine hundred fourteen thousand, two hundred twenty-one".