1871441 has 16 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 1499520.

The previous prime is 1871437. The next prime is 1871447. The reversal of 1871441 is 1441781.

It is not a de Polignac number, because 1871441 - 2² = 1871437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1871441.

It is not an unprimeable number, because it can be changed into a prime (1871447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3005 + ... + 3573.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1871441 is an apocalyptic number.

1871441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1871441 is a deficient number, since it is larger than the sum of its proper divisors (426799).

1871441 is a wasteful number, since it uses less digits than its factorization.

1871441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its digits is 896, while the sum is 26.

The square root of 1871441 is about 1368.0062134362. The cubic root of 1871441 is about 123.2325343112.

The spelling of 1871441 in words is "one million, eight hundred seventy-one thousand, four hundred forty-one".