1918412 has 12 divisors (see below), whose sum is σ = 3374616. Its totient is φ = 954240.

The previous prime is 1918391. The next prime is 1918417. The reversal of 1918412 is 2148191.

It is not an unprimeable number, because it can be changed into a prime (1918417) 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 3 ways as a sum of consecutive naturals, for example, 293 + ... + 1980.

It is an arithmetic number, because the mean of its divisors is an integer number (281218).

2^1918412 is an apocalyptic number.

It is an amenable number.

1918412 is a deficient number, since it is larger than the sum of its proper divisors (1456204).

1918412 is a wasteful number, since it uses less digits than its factorization.

1918412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488 (or 2486 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The square root of 1918412 is about 1385.0675073801. The cubic root of 1918412 is about 124.2550249173.

The spelling of 1918412 in words is "one million, nine hundred eighteen thousand, four hundred twelve".