1946646 has 64 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 576288.

The previous prime is 1946641. The next prime is 1946647. The reversal of 1946646 is 6466491.

1946646 is a `hidden beast` number, since 1 + 9 + 4 + 6 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1946646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946641) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 32965 + ... + 33023.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1946646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1946646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

1946646 is an abundant number, since it is smaller than the sum of its proper divisors (2891754).

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

1946646 is a wasteful number, since it uses less digits than its factorization.

1946646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 124 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 1946646 is about 1395.2225628910. Note that the first 3 decimals coincide. The cubic root of 1946646 is about 124.8616282158.

It can be divided in two parts, 19 and 46646, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 1946646 in words is "one million, nine hundred forty-six thousand, six hundred forty-six".