2447021242 has 16 divisors (see below), whose sum is σ = 3895699752. Its totient is φ = 1148797440.

The previous prime is 2447021237. The next prime is 2447021243. The reversal of 2447021242 is 2421207442.

2447021242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2121615721 + 325405521 = 46061^2 + 18039^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2447021242.

It is not an unprimeable number, because it can be changed into a prime (2447021243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71163 + ... + 99790.

Almost surely, 2^2447021242 is an apocalyptic number.

2447021242 is a deficient number, since it is larger than the sum of its proper divisors (1448678510).

2447021242 is a wasteful number, since it uses less digits than its factorization.

2447021242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171393.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 2447021242 is about 49467.3755317583. The cubic root of 2447021242 is about 1347.5531796219.

Adding to 2447021242 its reverse (2421207442), we get a palindrome (4868228684).

The spelling of 2447021242 in words is "two billion, four hundred forty-seven million, twenty-one thousand, two hundred forty-two".