3097840 has 20 divisors (see below), whose sum is σ = 7202664. Its totient is φ = 1239104.

The previous prime is 3097813. The next prime is 3097841. The reversal of 3097840 is 487903.

It is a happy number.

3097840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×3097840² = 19193225331200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3097841) 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, 19282 + ... + 19441.

Almost surely, 2^3097840 is an apocalyptic number.

It is an amenable number.

3097840 is an abundant number, since it is smaller than the sum of its proper divisors (4104824).

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

3097840 is a wasteful number, since it uses less digits than its factorization.

3097840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38736 (or 38730 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3097840 is about 1760.0681804976. The cubic root of 3097840 is about 145.7761001718.

The spelling of 3097840 in words is "three million, ninety-seven thousand, eight hundred forty".