4240402420 has 24 divisors (see below), whose sum is σ = 9017568000. Its totient is φ = 1674689952.

The previous prime is 4240402391. The next prime is 4240402451. The reversal of 4240402420 is 242040424.

It is a junction number, because it is equal to n+sod(n) for n = 4240402391 and 4240402400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340320 + ... + 1343479.

It is an arithmetic number, because the mean of its divisors is an integer number (375732000).

Almost surely, 2^4240402420 is an apocalyptic number.

It is an amenable number.

4240402420 is an abundant number, since it is smaller than the sum of its proper divisors (4777165580).

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

4240402420 is a wasteful number, since it uses less digits than its factorization.

4240402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683887 (or 2683885 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 4240402420 is about 65118.3723690941. The cubic root of 4240402420 is about 1618.5856705324.

Adding to 4240402420 its reverse (242040424), we get a palindrome (4482442844).

The spelling of 4240402420 in words is "four billion, two hundred forty million, four hundred two thousand, four hundred twenty".