1827420 has 96 divisors (see below), whose sum is σ = 6182400. Its totient is φ = 393984.

The previous prime is 1827389. The next prime is 1827421. The reversal of 1827420 is 247281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1827421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7866 + ... + 8094.

It is an arithmetic number, because the mean of its divisors is an integer number (64400).

2^1827420 is an apocalyptic number.

1827420 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 1827420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3091200).

1827420 is an abundant number, since it is smaller than the sum of its proper divisors (4354980).

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

1827420 is a wasteful number, since it uses less digits than its factorization.

1827420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1827420 is about 1351.8209940669. The cubic root of 1827420 is about 122.2586111423.

The spelling of 1827420 in words is "one million, eight hundred twenty-seven thousand, four hundred twenty".