4242444420 has 48 divisors (see below), whose sum is σ = 12199900608. Its totient is φ = 1100741760.

The previous prime is 4242444403. The next prime is 4242444439. The reversal of 4242444420 is 244442424.

4242444420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953286 + ... + 957725.

It is an arithmetic number, because the mean of its divisors is an integer number (254164596).

Almost surely, 2^4242444420 is an apocalyptic number.

It is an amenable number.

4242444420 is an abundant number, since it is smaller than the sum of its proper divisors (7957456188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4242444420 is a wasteful number, since it uses less digits than its factorization.

4242444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911060 (or 1911058 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

The square root of 4242444420 is about 65134.0496207629. The cubic root of 4242444420 is about 1618.8454431682.

Adding to 4242444420 its reverse (244442424), we get a palindrome (4486886844).

The spelling of 4242444420 in words is "four billion, two hundred forty-two million, four hundred forty-four thousand, four hundred twenty".