2841866421 has 64 divisors (see below), whose sum is σ = 4219776000. Its totient is φ = 1694048256.

The previous prime is 2841866411. The next prime is 2841866459. The reversal of 2841866421 is 1246681482.

2841866421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2841866421 - 2⁹ = 2841865909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2841866411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19072855 + ... + 19073003.

It is an arithmetic number, because the mean of its divisors is an integer number (65934000).

Almost surely, 2^2841866421 is an apocalyptic number.

It is an amenable number.

2841866421 is a deficient number, since it is larger than the sum of its proper divisors (1377909579).

2841866421 is a wasteful number, since it uses less digits than its factorization.

2841866421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its digits is 147456, while the sum is 42.

The square root of 2841866421 is about 53309.1588847545. The cubic root of 2841866421 is about 1416.4499068098.

The spelling of 2841866421 in words is "two billion, eight hundred forty-one million, eight hundred sixty-six thousand, four hundred twenty-one".