1994018 has 16 divisors (see below), whose sum is σ = 3244416. Its totient is φ = 913680.

The previous prime is 1993997. The next prime is 1994033. The reversal of 1994018 is 8104991.

It is a super-2 number, since 2×1994018² = 7952215568648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6905 + ... + 7187.

It is an arithmetic number, because the mean of its divisors is an integer number (202776).

2^1994018 is an apocalyptic number.

1994018 is a deficient number, since it is larger than the sum of its proper divisors (1250398).

1994018 is a wasteful number, since it uses less digits than its factorization.

1994018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1994018 is about 1412.0970221624. The cubic root of 1994018 is about 125.8663654150.

The spelling of 1994018 in words is "one million, nine hundred ninety-four thousand, eighteen".