1994459 has 2 divisors, whose sum is σ = 1994460. Its totient is φ = 1994458.

The previous prime is 1994441. The next prime is 1994467. The reversal of 1994459 is 9544991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1994459 - 2⁸ = 1994203 is a prime.

It is a super-3 number, since 3×1994459³ = 23801076137887333737, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1994429) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997229 + 997230.

It is an arithmetic number, because the mean of its divisors is an integer number (997230).

2^1994459 is an apocalyptic number.

1994459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994459 is an equidigital number, since it uses as much as digits as its factorization.

1994459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The square root of 1994459 is about 1412.2531642733. The cubic root of 1994459 is about 125.8756436622.

The spelling of 1994459 in words is "one million, nine hundred ninety-four thousand, four hundred fifty-nine".