3115638442 has 40 divisors (see below), whose sum is σ = 5474991456. Its totient is φ = 1329657336.

The previous prime is 3115638371. The next prime is 3115638457. The reversal of 3115638442 is 2448365113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1261693 + ... + 1264159.

Almost surely, 2^3115638442 is an apocalyptic number.

3115638442 is a deficient number, since it is larger than the sum of its proper divisors (2359353014).

3115638442 is an equidigital number, since it uses as much as digits as its factorization.

3115638442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2739 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 3115638442 is about 55817.9043139386. The cubic root of 3115638442 is about 1460.5474962347.

The spelling of 3115638442 in words is "three billion, one hundred fifteen million, six hundred thirty-eight thousand, four hundred forty-two".