3126698440 has 64 divisors (see below), whose sum is σ = 7289026560. Its totient is φ = 1205832960.

The previous prime is 3126698389. The next prime is 3126698441. The reversal of 3126698440 is 448966213.

It is a happy number.

3126698440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3126698441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338929 + ... + 348031.

It is an arithmetic number, because the mean of its divisors is an integer number (113891040).

Almost surely, 2^3126698440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3126698440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3644513280).

3126698440 is an abundant number, since it is smaller than the sum of its proper divisors (4162328120).

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

3126698440 is a wasteful number, since it uses less digits than its factorization.

3126698440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9422 (or 9418 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 3126698440 is about 55916.8886831161. Note that the first 3 decimals coincide. The cubic root of 3126698440 is about 1462.2736887990.

The spelling of 3126698440 in words is "three billion, one hundred twenty-six million, six hundred ninety-eight thousand, four hundred forty".