3000640 has 28 divisors (see below), whose sum is σ = 7146036. Its totient is φ = 1200128.

The previous prime is 3000637. The next prime is 3000643. The reversal of 3000640 is 460003.

It is an interprime number because it is at equal distance from previous prime (3000637) and next prime (3000643).

It can be written as a sum of positive squares in 2 ways, for example, as 665856 + 2334784 = 816^2 + 1528^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3000640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3000643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4369 + ... + 5008.

Almost surely, 2^3000640 is an apocalyptic number.

It is an amenable number.

3000640 is an abundant number, since it is smaller than the sum of its proper divisors (4145396).

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

3000640 is an equidigital number, since it uses as much as digits as its factorization.

3000640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9394 (or 9384 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3000640 is about 1732.2355498026. The cubic root of 3000640 is about 144.2352122985.

Adding to 3000640 its reverse (460003), we get a palindrome (3460643).

The spelling of 3000640 in words is "three million, six hundred forty", and thus it is an aban number.