1838364 has 48 divisors (see below), whose sum is σ = 4932480. Its totient is φ = 527040.

The previous prime is 1838341. The next prime is 1838371. The reversal of 1838364 is 4638381.

It is a Harshad number since it is a multiple of its sum of digits (33).

Its product of digits (13824) is a multiple of the sum of its prime divisors (768).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2142 + ... + 2874.

It is an arithmetic number, because the mean of its divisors is an integer number (102760).

2^1838364 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 1838364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2466240).

1838364 is an abundant number, since it is smaller than the sum of its proper divisors (3094116).

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

1838364 is a wasteful number, since it uses less digits than its factorization.

1838364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 768 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1838364 is about 1355.8628249200. The cubic root of 1838364 is about 122.5021851616.

The spelling of 1838364 in words is "one million, eight hundred thirty-eight thousand, three hundred sixty-four".