4394424242 has 24 divisors (see below), whose sum is σ = 7123005036. Its totient is φ = 2021268384.

The previous prime is 4394424241. The next prime is 4394424269. The reversal of 4394424242 is 2424244934.

It can be written as a sum of positive squares in 2 ways, for example, as 4394231521 + 192721 = 66289^2 + 439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4394424196 and 4394424205.

It is not an unprimeable number, because it can be changed into a prime (4394424241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5010308 + ... + 5011184.

Almost surely, 2^4394424242 is an apocalyptic number.

4394424242 is a deficient number, since it is larger than the sum of its proper divisors (2728580794).

4394424242 is an equidigital number, since it uses as much as digits as its factorization.

4394424242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1331 counting only the distinct ones).

The product of its digits is 221184, while the sum is 38.

The square root of 4394424242 is about 66290.4536264461. The cubic root of 4394424242 is about 1637.9500763253.

It can be divided in two parts, 43944 and 24242, that added together give a palindrome (68186).

The spelling of 4394424242 in words is "four billion, three hundred ninety-four million, four hundred twenty-four thousand, two hundred forty-two".