2021456440024 has 32 divisors (see below), whose sum is σ = 4335775149600. Its totient is φ = 865521918720.

The previous prime is 2021456440019. The next prime is 2021456440049. The reversal of 2021456440024 is 4200446541202.

It is a super-2 number, since 2×2021456440024² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16951629 + ... + 17070460.

It is an arithmetic number, because the mean of its divisors is an integer number (135492973425).

Almost surely, 2^{2021456440024} is an apocalyptic number.

It is an amenable number.

2021456440024 is an abundant number, since it is smaller than the sum of its proper divisors (2314318709576).

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

2021456440024 is a wasteful number, since it uses less digits than its factorization.

2021456440024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34023163 (or 34023159 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

The spelling of 2021456440024 in words is "two trillion, twenty-one billion, four hundred fifty-six million, four hundred forty thousand, twenty-four".