946640 has 20 divisors (see below), whose sum is σ = 2201124. Its totient is φ = 378624.

The previous prime is 946607. The next prime is 946661. The reversal of 946640 is 46649.

946640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 659344 + 287296 = 812^2 + 536^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×946640² = 1792254579200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 946640.

It is an unprimeable number.

946640 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5837 + ... + 5996.

2⁹⁴⁶⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

946640 is an abundant number, since it is smaller than the sum of its proper divisors (1254484).

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

946640 is a wasteful number, since it uses less digits than its factorization.

946640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11846 (or 11840 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 946640 is about 972.9542640844. The cubic root of 946640 is about 98.1887242097.

The spelling of 946640 in words is "nine hundred forty-six thousand, six hundred forty".