1841380 has 24 divisors (see below), whose sum is σ = 4036032. Its totient is φ = 704352.

The previous prime is 1841377. The next prime is 1841383. The reversal of 1841380 is 831481.

It is an interprime number because it is at equal distance from previous prime (1841377) and next prime (1841383).

It is not an unprimeable number, because it can be changed into a prime (1841383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (168168).

2^1841380 is an apocalyptic number.

1841380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1841380 is an abundant number, since it is smaller than the sum of its proper divisors (2194652).

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

1841380 is a wasteful number, since it uses less digits than its factorization.

1841380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035 (or 4033 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1841380 is about 1356.9745760330. The cubic root of 1841380 is about 122.5691404775.

The spelling of 1841380 in words is "one million, eight hundred forty-one thousand, three hundred eighty".