3166640 has 40 divisors (see below), whose sum is σ = 7687008. Its totient is φ = 1210880.

The previous prime is 3166637. The next prime is 3166643. The reversal of 3166640 is 466613.

It is an interprime number because it is at equal distance from previous prime (3166637) and next prime (3166643).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (3166643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980 + ... + 2700.

Almost surely, 2^3166640 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 3166640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3843504).

3166640 is an abundant number, since it is smaller than the sum of its proper divisors (4520368).

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

3166640 is a wasteful number, since it uses less digits than its factorization.

3166640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3166640 is about 1779.5055493030. The cubic root of 3166640 is about 146.8473897097.

The spelling of 3166640 in words is "three million, one hundred sixty-six thousand, six hundred forty".