3000040 has 32 divisors (see below), whose sum is σ = 6804000. Its totient is φ = 1190464.

The previous prime is 3000029. The next prime is 3000047. The reversal of 3000040 is 400003.

It is a junction number, because it is equal to n+sod(n) for n = 2999987 and 3000032.

It is not an unprimeable number, because it can be changed into a prime (3000047) 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, 6951 + ... + 7369.

It is an arithmetic number, because the mean of its divisors is an integer number (212625).

Almost surely, 2^3000040 is an apocalyptic number.

It is an amenable number.

3000040 is an abundant number, since it is smaller than the sum of its proper divisors (3803960).

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

3000040 is a wasteful number, since it uses less digits than its factorization.

3000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 3000040 is about 1732.0623545358. The cubic root of 3000040 is about 144.2255980277.

Adding to 3000040 its reverse (400003), we get a palindrome (3400043).

The spelling of 3000040 in words is "three million, forty", and thus it is an aban number and an uban number.