1666230 has 16 divisors (see below), whose sum is σ = 3999024. Its totient is φ = 444320.

The previous prime is 1666213. The next prime is 1666237. The reversal of 1666230 is 326661.

It is a self number, because there is not a number n which added to its sum of digits gives 1666230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666237) 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, 27741 + ... + 27800.

It is an arithmetic number, because the mean of its divisors is an integer number (249939).

2^1666230 is an apocalyptic number.

1666230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1666230 is an abundant number, since it is smaller than the sum of its proper divisors (2332794).

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

1666230 is a wasteful number, since it uses less digits than its factorization.

1666230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55551.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1666230 is about 1290.8253173842. The cubic root of 1666230 is about 118.5527547336.

The spelling of 1666230 in words is "one million, six hundred sixty-six thousand, two hundred thirty".