6640092 has 18 divisors (see below), whose sum is σ = 16784768. Its totient is φ = 2213352.

The previous prime is 6640091. The next prime is 6640093. The reversal of 6640092 is 2900466.

It is an interprime number because it is at equal distance from previous prime (6640091) and next prime (6640093).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92188 + ... + 92259.

Almost surely, 2^6640092 is an apocalyptic number.

It is an amenable number.

6640092 is an abundant number, since it is smaller than the sum of its proper divisors (10144676).

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

6640092 is a wasteful number, since it uses less digits than its factorization.

6640092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184457 (or 184452 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 6640092 is about 2576.8375967453. The cubic root of 6640092 is about 187.9567955646.

The spelling of 6640092 in words is "six million, six hundred forty thousand, ninety-two".