3082640 has 80 divisors (see below), whose sum is σ = 8142336. Its totient is φ = 1075200.

The previous prime is 3082601. The next prime is 3082649. The reversal of 3082640 is 462803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3082649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27224 + ... + 27336.

Almost surely, 2^3082640 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 3082640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071168).

3082640 is an abundant number, since it is smaller than the sum of its proper divisors (5059696).

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

3082640 is a wasteful number, since it uses less digits than its factorization.

3082640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 3082640 is about 1755.7448561793. The cubic root of 3082640 is about 145.5372853120.

The spelling of 3082640 in words is "three million, eighty-two thousand, six hundred forty".