1844138 has 4 divisors (see below), whose sum is σ = 2766210. Its totient is φ = 922068.

The previous prime is 1844131. The next prime is 1844153. The reversal of 1844138 is 8314481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 528529 = 1147^2 + 727^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1844138.

It is not an unprimeable number, because it can be changed into a prime (1844131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461033 + ... + 461036.

2^1844138 is an apocalyptic number.

1844138 is a deficient number, since it is larger than the sum of its proper divisors (922072).

1844138 is an equidigital number, since it uses as much as digits as its factorization.

1844138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922071.

The product of its digits is 3072, while the sum is 29.

The square root of 1844138 is about 1357.9904270649. The cubic root of 1844138 is about 122.6303042163.

The spelling of 1844138 in words is "one million, eight hundred forty-four thousand, one hundred thirty-eight".