1660022 has 24 divisors (see below), whose sum is σ = 3121776. Its totient is φ = 656208.

The previous prime is 1660007. The next prime is 1660037. The reversal of 1660022 is 2200661.

It is an interprime number because it is at equal distance from previous prime (1660007) and next prime (1660037).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (130074).

2^1660022 is an apocalyptic number.

1660022 is a deficient number, since it is larger than the sum of its proper divisors (1461754).

1660022 is a wasteful number, since it uses less digits than its factorization.

1660022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1660022 is about 1288.4184103000. The cubic root of 1660022 is about 118.4053378255.

Adding to 1660022 its reverse (2200661), we get a palindrome (3860683).

The spelling of 1660022 in words is "one million, six hundred sixty thousand, twenty-two".