1984401 has 12 divisors (see below), whose sum is σ = 2903680. Its totient is φ = 1305720.

The previous prime is 1984399. The next prime is 1984429. The reversal of 1984401 is 1044891.

It is not a de Polignac number, because 1984401 - 2¹ = 1984399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984471) 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 11 ways as a sum of consecutive naturals, for example, 685 + ... + 2106.

2^1984401 is an apocalyptic number.

It is an amenable number.

1984401 is a deficient number, since it is larger than the sum of its proper divisors (919279).

1984401 is a wasteful number, since it uses less digits than its factorization.

1984401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2873 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1984401 is about 1408.6876871755. The cubic root of 1984401 is about 125.6636912084.

The spelling of 1984401 in words is "one million, nine hundred eighty-four thousand, four hundred one".