4020042430 has 32 divisors (see below), whose sum is σ = 7316313984. Its totient is φ = 1590239136.

The previous prime is 4020042391. The next prime is 4020042443. The reversal of 4020042430 is 342400204.

It is a super-2 number, since 2×4020042430² = 32321482278000609800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4020042398 and 4020042407.

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 15 ways as a sum of consecutive naturals, for example, 685089 + ... + 690931.

It is an arithmetic number, because the mean of its divisors is an integer number (228634812).

Almost surely, 2^4020042430 is an apocalyptic number.

4020042430 is a deficient number, since it is larger than the sum of its proper divisors (3296271554).

4020042430 is a wasteful number, since it uses less digits than its factorization.

4020042430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 4020042430 is about 63403.8045388445. The cubic root of 4020042430 is about 1590.0479172828.

Adding to 4020042430 its reverse (342400204), we get a palindrome (4362442634).

The spelling of 4020042430 in words is "four billion, twenty million, forty-two thousand, four hundred thirty".