3106640440 has 16 divisors (see below), whose sum is σ = 6989941080. Its totient is φ = 1242656160.

The previous prime is 3106640419. The next prime is 3106640441. The reversal of 3106640440 is 440466013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3106640399 and 3106640408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3106640441) 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, 38832966 + ... + 38833045.

Almost surely, 2^3106640440 is an apocalyptic number.

It is an amenable number.

3106640440 is an abundant number, since it is smaller than the sum of its proper divisors (3883300640).

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

3106640440 is a wasteful number, since it uses less digits than its factorization.

3106640440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77666022 (or 77666018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 3106640440 is about 55737.2446394689. The cubic root of 3106640440 is about 1459.1401141627.

The spelling of 3106640440 in words is "three billion, one hundred six million, six hundred forty thousand, four hundred forty".