1841825921 has 8 divisors (see below), whose sum is σ = 1988743680. Its totient is φ = 1695656592.

The previous prime is 1841825891. The next prime is 1841825941. The reversal of 1841825921 is 1295281481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1841825921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1841825941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181985 + ... + 191838.

It is an arithmetic number, because the mean of its divisors is an integer number (248592960).

Almost surely, 2^1841825921 is an apocalyptic number.

It is an amenable number.

1841825921 is a deficient number, since it is larger than the sum of its proper divisors (146917759).

1841825921 is a wasteful number, since it uses less digits than its factorization.

1841825921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374215.

The product of its digits is 46080, while the sum is 41.

The square root of 1841825921 is about 42916.4994029103. The cubic root of 1841825921 is about 1225.7903373549.

The spelling of 1841825921 in words is "one billion, eight hundred forty-one million, eight hundred twenty-five thousand, nine hundred twenty-one".