4426640242 has 8 divisors (see below), whose sum is σ = 6765242796. Its totient is φ = 2171559312.

The previous prime is 4426640227. The next prime is 4426640249. The reversal of 4426640242 is 2420466244.

It can be written as a sum of positive squares in 2 ways, for example, as 4324246081 + 102394161 = 65759^2 + 10119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4426640198 and 4426640207.

It is not an unprimeable number, because it can be changed into a prime (4426640249) 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 3 ways as a sum of consecutive naturals, for example, 20880273 + ... + 20880484.

Almost surely, 2^4426640242 is an apocalyptic number.

4426640242 is a deficient number, since it is larger than the sum of its proper divisors (2338602554).

4426640242 is a wasteful number, since it uses less digits than its factorization.

4426640242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41760812.

The product of its (nonzero) digits is 73728, while the sum is 34.

The square root of 4426640242 is about 66533.0011498053. The cubic root of 4426640242 is about 1641.9429977794.

The spelling of 4426640242 in words is "four billion, four hundred twenty-six million, six hundred forty thousand, two hundred forty-two".