1891041 has 8 divisors (see below), whose sum is σ = 2544960. Its totient is φ = 1248912.

The previous prime is 1891039. The next prime is 1891049. The reversal of 1891041 is 1401981.

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

It is not a de Polignac number, because 1891041 - 2¹ = 1891039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1891049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2565 + ... + 3218.

It is an arithmetic number, because the mean of its divisors is an integer number (318120).

2^1891041 is an apocalyptic number.

It is an amenable number.

1891041 is a deficient number, since it is larger than the sum of its proper divisors (653919).

1891041 is a wasteful number, since it uses less digits than its factorization.

1891041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1891041 is about 1375.1512644069. The cubic root of 1891041 is about 123.6612546057.

The spelling of 1891041 in words is "one million, eight hundred ninety-one thousand, forty-one".