3043640 has 16 divisors (see below), whose sum is σ = 6848280. Its totient is φ = 1217440.

The previous prime is 3043627. The next prime is 3043643. The reversal of 3043640 is 463403.

It is a happy number.

3043640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3043643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38006 + ... + 38085.

Almost surely, 2^3043640 is an apocalyptic number.

It is an amenable number.

3043640 is an abundant number, since it is smaller than the sum of its proper divisors (3804640).

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

3043640 is a wasteful number, since it uses less digits than its factorization.

3043640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76102 (or 76098 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3043640 is about 1744.6031067266. The cubic root of 3043640 is about 144.9209239862.

The spelling of 3043640 in words is "three million, forty-three thousand, six hundred forty".