1918234 has 8 divisors (see below), whose sum is σ = 2976660. Its totient is φ = 926016.

The previous prime is 1918219. The next prime is 1918237. The reversal of 1918234 is 4328191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1918225 + 9 = 1385^2 + 3^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1918237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16479 + ... + 16594.

2^1918234 is an apocalyptic number.

1918234 is a deficient number, since it is larger than the sum of its proper divisors (1058426).

1918234 is a wasteful number, since it uses less digits than its factorization.

1918234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33104.

The product of its digits is 1728, while the sum is 28.

The square root of 1918234 is about 1385.0032490937. The cubic root of 1918234 is about 124.2511817946.

The spelling of 1918234 in words is "one million, nine hundred eighteen thousand, two hundred thirty-four".