4020215424 has 32 divisors (see below), whose sum is σ = 10678698240. Its totient is φ = 1340071680.

The previous prime is 4020215417. The next prime is 4020215429. The reversal of 4020215424 is 4245120204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 4020215394 and 4020215403.

It is not an unprimeable number, because it can be changed into a prime (4020215429) 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 3 ways as a sum of consecutive naturals, for example, 5234272 + ... + 5235039.

It is an arithmetic number, because the mean of its divisors is an integer number (333709320).

Almost surely, 2^4020215424 is an apocalyptic number.

It is an amenable number.

4020215424 is an abundant number, since it is smaller than the sum of its proper divisors (6658482816).

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

4020215424 is a wasteful number, since it uses less digits than its factorization.

4020215424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469328 (or 10469316 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 4020215424 is about 63405.1687482969. The cubic root of 4020215424 is about 1590.0707250689.

Adding to 4020215424 its reverse (4245120204), we get a palindrome (8265335628).

The spelling of 4020215424 in words is "four billion, twenty million, two hundred fifteen thousand, four hundred twenty-four".