2842656421 has 8 divisors (see below), whose sum is σ = 3101508000. Its totient is φ = 2583876240.

The previous prime is 2842656409. The next prime is 2842656451. The reversal of 2842656421 is 1246562482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2842656421 - 2²⁵ = 2809101989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842656451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98295 + ... + 123883.

It is an arithmetic number, because the mean of its divisors is an integer number (387688500).

Almost surely, 2^2842656421 is an apocalyptic number.

It is an amenable number.

2842656421 is a deficient number, since it is larger than the sum of its proper divisors (258851579).

2842656421 is a wasteful number, since it uses less digits than its factorization.

2842656421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35699.

The product of its digits is 184320, while the sum is 40.

The square root of 2842656421 is about 53316.5679784436. The cubic root of 2842656421 is about 1416.5811458839.

The spelling of 2842656421 in words is "two billion, eight hundred forty-two million, six hundred fifty-six thousand, four hundred twenty-one".