1828170 has 80 divisors (see below), whose sum is σ = 5131368. Its totient is φ = 466560.

The previous prime is 1828153. The next prime is 1828193. The reversal of 1828170 is 718281.

It can be written as a sum of positive squares in 4 ways, for example, as 1347921 + 480249 = 1161^2 + 693^2 .

It is a hoax number, since the sum of its digits (27) 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 (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29940 + ... + 30000.

2^1828170 is an apocalyptic number.

1828170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1828170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2565684).

1828170 is an abundant number, since it is smaller than the sum of its proper divisors (3303198).

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

1828170 is a wasteful number, since it uses less digits than its factorization.

1828170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1828170 is about 1352.0983692025. The cubic root of 1828170 is about 122.2753344311.

The spelling of 1828170 in words is "one million, eight hundred twenty-eight thousand, one hundred seventy".