3040644 has 12 divisors (see below), whose sum is σ = 7094864. Its totient is φ = 1013544.

The previous prime is 3040633. The next prime is 3040649. The reversal of 3040644 is 4460403.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3040644.

It is not an unprimeable number, because it can be changed into a prime (3040649) 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, 126682 + ... + 126705.

Almost surely, 2^3040644 is an apocalyptic number.

It is an amenable number.

3040644 is an abundant number, since it is smaller than the sum of its proper divisors (4054220).

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

3040644 is a wasteful number, since it uses less digits than its factorization.

3040644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253394 (or 253392 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3040644 is about 1743.7442473023. The cubic root of 3040644 is about 144.8733575166.

The spelling of 3040644 in words is "three million, forty thousand, six hundred forty-four".