2021025424 has 20 divisors (see below), whose sum is σ = 4271713200. Its totient is φ = 918647840.

The previous prime is 2021025373. The next prime is 2021025431. The reversal of 2021025424 is 4245201202.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2021025395 and 2021025404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5741374 + ... + 5741725.

It is an arithmetic number, because the mean of its divisors is an integer number (213585660).

Almost surely, 2^2021025424 is an apocalyptic number.

It is an amenable number.

2021025424 is an abundant number, since it is smaller than the sum of its proper divisors (2250687776).

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

2021025424 is a wasteful number, since it uses less digits than its factorization.

2021025424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11483118 (or 11483112 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2021025424 is about 44955.8163533930. The cubic root of 2021025424 is about 1264.3207305794.

Adding to 2021025424 its reverse (4245201202), we get a palindrome (6266226626).

The spelling of 2021025424 in words is "two billion, twenty-one million, twenty-five thousand, four hundred twenty-four".