1946664 has 48 divisors (see below), whose sum is σ = 5553600. Its totient is φ = 614304.

The previous prime is 1946663. The next prime is 1946669. The reversal of 1946664 is 4666491.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1946663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (115700).

2^1946664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1946664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2776800).

1946664 is an abundant number, since it is smaller than the sum of its proper divisors (3606936).

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

1946664 is a wasteful number, since it uses less digits than its factorization.

1946664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1447 counting only the distinct ones).

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

The square root of 1946664 is about 1395.2290134598. The cubic root of 1946664 is about 124.8620130662.

The spelling of 1946664 in words is "one million, nine hundred forty-six thousand, six hundred sixty-four".