3155730042 has 32 divisors (see below), whose sum is σ = 6678650880. Its totient is φ = 992000240.

The previous prime is 3155730031. The next prime is 3155730047. The reversal of 3155730042 is 2400375513.

It is a junction number, because it is equal to n+sod(n) for n = 3155729991 and 3155730009.

It is not an unprimeable number, because it can be changed into a prime (3155730047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151242 + ... + 170837.

It is an arithmetic number, because the mean of its divisors is an integer number (208707840).

Almost surely, 2^3155730042 is an apocalyptic number.

3155730042 is an abundant number, since it is smaller than the sum of its proper divisors (3522920838).

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

3155730042 is a wasteful number, since it uses less digits than its factorization.

3155730042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322178.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 3155730042 is about 56175.8848795460. The cubic root of 3155730042 is about 1466.7855225878.

The spelling of 3155730042 in words is "three billion, one hundred fifty-five million, seven hundred thirty thousand, forty-two".