2422081 has 4 divisors (see below), whose sum is σ = 2446164. Its totient is φ = 2398000.

The previous prime is 2422073. The next prime is 2422087. The reversal of 2422081 is 1802242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 1440000 = 991^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422081 - 2³ = 2422073 is a prime.

It is a super-2 number, since 2×2422081² = 11732952741122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2422081 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11890 + ... + 12091.

It is an arithmetic number, because the mean of its divisors is an integer number (611541).

2^2422081 is an apocalyptic number.

It is an amenable number.

2422081 is a deficient number, since it is larger than the sum of its proper divisors (24083).

2422081 is a wasteful number, since it uses less digits than its factorization.

2422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24082.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2422081 is about 1556.3036336140. The cubic root of 2422081 is about 134.2959413087.

The spelling of 2422081 in words is "two million, four hundred twenty-two thousand, eighty-one".