1844018136 has 192 divisors, whose sum is σ = 5497390080. Its totient is φ = 578067840.

The previous prime is 1844018119. The next prime is 1844018147. The reversal of 1844018136 is 6318104481.

It is a happy number.

1844018136 is a `hidden beast` number, since 1 + 8 + 440 + 181 + 36 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1844018136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2229355 + ... + 2230181.

It is an arithmetic number, because the mean of its divisors is an integer number (28632240).

Almost surely, 2^1844018136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1844018136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2748695040).

1844018136 is an abundant number, since it is smaller than the sum of its proper divisors (3653371944).

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

1844018136 is a wasteful number, since it uses less digits than its factorization.

1844018136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1844018136 is about 42942.0322760812. The cubic root of 1844018136 is about 1226.2764727893.

The spelling of 1844018136 in words is "one billion, eight hundred forty-four million, eighteen thousand, one hundred thirty-six".