3155042720 has 96 divisors (see below), whose sum is σ = 7861795200. Its totient is φ = 1193204736.

The previous prime is 3155042719. The next prime is 3155042789. The reversal of 3155042720 is 272405513.

It is a happy 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, 2549942 + ... + 2551178.

It is an arithmetic number, because the mean of its divisors is an integer number (81893700).

Almost surely, 2^3155042720 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 3155042720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3930897600).

3155042720 is an abundant number, since it is smaller than the sum of its proper divisors (4706752480).

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

3155042720 is a wasteful number, since it uses less digits than its factorization.

3155042720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 3155042720 is about 56169.7669569672. The cubic root of 3155042720 is about 1466.6790256075.

The spelling of 3155042720 in words is "three billion, one hundred fifty-five million, forty-two thousand, seven hundred twenty".