3155105440 has 96 divisors (see below), whose sum is σ = 7781783184. Its totient is φ = 1207664640.

The previous prime is 3155105411. The next prime is 3155105453. The reversal of 3155105440 is 445015513.

It can be written as a sum of positive squares in 8 ways, for example, as 943472656 + 2211632784 = 30716^2 + 47028^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3155105399 and 3155105408.

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, 356752 + ... + 365488.

Almost surely, 2^3155105440 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 3155105440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3890891592).

3155105440 is an abundant number, since it is smaller than the sum of its proper divisors (4626677744).

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

3155105440 is a wasteful number, since it uses less digits than its factorization.

3155105440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8850 (or 8842 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 3155105440 is about 56170.3252616540. The cubic root of 3155105440 is about 1466.6887443876.

The spelling of 3155105440 in words is "three billion, one hundred fifty-five million, one hundred five thousand, four hundred forty".