1646106 has 48 divisors (see below), whose sum is σ = 4186080. Its totient is φ = 426720.

The previous prime is 1646101. The next prime is 1646107. The reversal of 1646106 is 6016461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1646101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2980 + ... + 3488.

It is an arithmetic number, because the mean of its divisors is an integer number (87210).

2^1646106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1646106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2093040).

1646106 is an abundant number, since it is smaller than the sum of its proper divisors (2539974).

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

1646106 is a wasteful number, since it uses less digits than its factorization.

1646106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1646106 is about 1283.0066250803. The cubic root of 1646106 is about 118.0735441183.

The spelling of 1646106 in words is "one million, six hundred forty-six thousand, one hundred six".