2422381 has 16 divisors (see below), whose sum is σ = 2815344. Its totient is φ = 2064384.

The previous prime is 2422369. The next prime is 2422391. The reversal of 2422381 is 1832242.

It can be written as a sum of positive squares in 8 ways, for example, as 366025 + 2056356 = 605^2 + 1434^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422381 - 2¹¹ = 2420333 is a prime.

It is a super-2 number, since 2×2422381² = 11735859418322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21381 + ... + 21493.

It is an arithmetic number, because the mean of its divisors is an integer number (175959).

2^2422381 is an apocalyptic number.

It is an amenable number.

2422381 is a deficient number, since it is larger than the sum of its proper divisors (392963).

2422381 is a wasteful number, since it uses less digits than its factorization.

2422381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240.

The product of its digits is 768, while the sum is 22.

The square root of 2422381 is about 1556.4000128502. The cubic root of 2422381 is about 134.3014857309.

The spelling of 2422381 in words is "two million, four hundred twenty-two thousand, three hundred eighty-one".