1664010 has 32 divisors (see below), whose sum is σ = 4438080. Its totient is φ = 443664.

The previous prime is 1664009. The next prime is 1664017. The reversal of 1664010 is 104661.

1664010 is a `hidden beast` number, since 1 + 664 + 0 + 1 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1664017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2812 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (138690).

2^1664010 is an apocalyptic number.

1664010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1664010 is an abundant number, since it is smaller than the sum of its proper divisors (2774070).

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

1664010 is a wasteful number, since it uses less digits than its factorization.

1664010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179 (or 6173 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1664010 is about 1289.9651158074. The cubic root of 1664010 is about 118.5000801153.

Adding to 1664010 its reverse (104661), we get a palindrome (1768671).

The spelling of 1664010 in words is "one million, six hundred sixty-four thousand, ten".