3115455440 has 80 divisors (see below), whose sum is σ = 7430990160. Its totient is φ = 1214300160.

The previous prime is 3115455439. The next prime is 3115455451. The reversal of 3115455440 is 445545113.

It can be written as a sum of positive squares in 8 ways, for example, as 29584 + 3115425856 = 172^2 + 55816^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3115455397 and 3115455406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528992 + ... + 534848.

It is an arithmetic number, because the mean of its divisors is an integer number (92887377).

Almost surely, 2^3115455440 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 3115455440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3715495080).

3115455440 is an abundant number, since it is smaller than the sum of its proper divisors (4315534720).

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

3115455440 is a wasteful number, since it uses less digits than its factorization.

3115455440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040 (or 6034 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 3115455440 is about 55816.2650129870. The cubic root of 3115455440 is about 1460.5188998115.

The spelling of 3115455440 in words is "three billion, one hundred fifteen million, four hundred fifty-five thousand, four hundred forty".