1834380 has 96 divisors (see below), whose sum is σ = 5913600. Its totient is φ = 471744.

The previous prime is 1834373. The next prime is 1834397. The reversal of 1834380 is 834381.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23181 + ... + 23259.

It is an arithmetic number, because the mean of its divisors is an integer number (61600).

2^1834380 is an apocalyptic number.

1834380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1834380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956800).

1834380 is an abundant number, since it is smaller than the sum of its proper divisors (4079220).

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

1834380 is a wasteful number, since it uses less digits than its factorization.

1834380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1834380 is about 1354.3928529049. The cubic root of 1834380 is about 122.4136278560.

Subtracting from 1834380 its reverse (834381), we obtain a palindrome (999999).

The spelling of 1834380 in words is "one million, eight hundred thirty-four thousand, three hundred eighty".