4242345420 has 48 divisors (see below), whose sum is σ = 11996193888. Its totient is φ = 1120089600.

The previous prime is 4242345407. The next prime is 4242345421. The reversal of 4242345420 is 245432424.

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

It is not an unprimeable number, because it can be changed into a prime (4242345421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343969 + ... + 356088.

It is an arithmetic number, because the mean of its divisors is an integer number (249920706).

Almost surely, 2^4242345420 is an apocalyptic number.

It is an amenable number.

4242345420 is an abundant number, since it is smaller than the sum of its proper divisors (7753848468).

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

4242345420 is a wasteful number, since it uses less digits than its factorization.

4242345420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700170 (or 700168 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 4242345420 is about 65133.2896451576. The cubic root of 4242345420 is about 1618.8328508252.

Adding to 4242345420 its reverse (245432424), we get a palindrome (4487777844).

The spelling of 4242345420 in words is "four billion, two hundred forty-two million, three hundred forty-five thousand, four hundred twenty".