1918734 has 16 divisors (see below), whose sum is σ = 4039680. Its totient is φ = 605880.

The previous prime is 1918733. The next prime is 1918747. The reversal of 1918734 is 4378191.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1918695 and 1918704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918733) 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 7 ways as a sum of consecutive naturals, for example, 8302 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (252480).

2^1918734 is an apocalyptic number.

1918734 is an abundant number, since it is smaller than the sum of its proper divisors (2120946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1918734 is a wasteful number, since it uses less digits than its factorization.

1918734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16855.

The product of its digits is 6048, while the sum is 33.

The square root of 1918734 is about 1385.1837423245. The cubic root of 1918734 is about 124.2619764793.

The spelling of 1918734 in words is "one million, nine hundred eighteen thousand, seven hundred thirty-four".