2427845021 has 16 divisors (see below), whose sum is σ = 3017304576. Its totient is φ = 1905659136.

The previous prime is 2427845009. The next prime is 2427845027. The reversal of 2427845021 is 1205487242.

It is a cyclic number.

It is not a de Polignac number, because 2427845021 - 2³⁰ = 1354103197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2427845027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271301 + ... + 280106.

It is an arithmetic number, because the mean of its divisors is an integer number (188581536).

Almost surely, 2^2427845021 is an apocalyptic number.

It is an amenable number.

2427845021 is a deficient number, since it is larger than the sum of its proper divisors (589459555).

2427845021 is a wasteful number, since it uses less digits than its factorization.

2427845021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551468.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 2427845021 is about 49273.1673530330. The cubic root of 2427845021 is about 1344.0238853125.

The spelling of 2427845021 in words is "two billion, four hundred twenty-seven million, eight hundred forty-five thousand, twenty-one".