1660230 has 128 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 362880.

The previous prime is 1660229. The next prime is 1660231. The reversal of 1660230 is 320661.

It is a happy number.

1660230 is a `hidden beast` number, since 1 + 660 + 2 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1660229) and next prime (1660231).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38589 + ... + 38631.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2^1660230 is an apocalyptic number.

1660230 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 1660230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661120).

1660230 is an abundant number, since it is smaller than the sum of its proper divisors (3662010).

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

1660230 is a wasteful number, since it uses less digits than its factorization.

1660230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1660230 is about 1288.4991268914. The cubic root of 1660230 is about 118.4102829972.

1660230 divided by its sum of digits (18) gives a triangular number (92235 = T₄₂₉).

Adding to 1660230 its reverse (320661), we get a palindrome (1980891).

The spelling of 1660230 in words is "one million, six hundred sixty thousand, two hundred thirty".