4020420024 has 24 divisors (see below), whose sum is σ = 10888637760. Its totient is φ = 1340139984.

The previous prime is 4020420011. The next prime is 4020420097. The reversal of 4020420024 is 4200240204.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4020419979 and 4020420006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27919512 + ... + 27919655.

It is an arithmetic number, because the mean of its divisors is an integer number (453693240).

Almost surely, 2^4020420024 is an apocalyptic number.

It is an amenable number.

4020420024 is an abundant number, since it is smaller than the sum of its proper divisors (6868217736).

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

4020420024 is a wasteful number, since it uses less digits than its factorization.

4020420024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55839179 (or 55839172 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4020420024 is about 63406.7821609014. The cubic root of 4020420024 is about 1590.0976989925.

Adding to 4020420024 its reverse (4200240204), we get a palindrome (8220660228).

The spelling of 4020420024 in words is "four billion, twenty million, four hundred twenty thousand, twenty-four".