2947442242 has 16 divisors (see below), whose sum is σ = 4565279232. Its totient is φ = 1425713760.

The previous prime is 2947442227. The next prime is 2947442243. The reversal of 2947442242 is 2422447492.

It is a junction number, because it is equal to n+sod(n) for n = 2947442195 and 2947442204.

It is not an unprimeable number, because it can be changed into a prime (2947442243) 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 7 ways as a sum of consecutive naturals, for example, 251763 + ... + 263209.

It is an arithmetic number, because the mean of its divisors is an integer number (285329952).

Almost surely, 2^2947442242 is an apocalyptic number.

2947442242 is a deficient number, since it is larger than the sum of its proper divisors (1617836990).

2947442242 is a wasteful number, since it uses less digits than its factorization.

2947442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15633.

The product of its digits is 258048, while the sum is 40.

The square root of 2947442242 is about 54290.3512790256. The cubic root of 2947442242 is about 1433.7775231331. Note that the first 3 decimals are identical.

The spelling of 2947442242 in words is "two billion, nine hundred forty-seven million, four hundred forty-two thousand, two hundred forty-two".