2426381 has 2 divisors, whose sum is σ = 2426382. Its totient is φ = 2426380.

The previous prime is 2426377. The next prime is 2426383. The reversal of 2426381 is 1836242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 1069156 = 1165^2 + 1034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2426381 - 2² = 2426377 is a prime.

It is a super-2 number, since 2×2426381² = 11774649514322, which contains 22 as substring.

Together with 2426383, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₇₈₀₈₂ and since 2426381 and 178082 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2426381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2426383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213190 + 1213191.

It is an arithmetic number, because the mean of its divisors is an integer number (1213191).

2^2426381 is an apocalyptic number.

It is an amenable number.

2426381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2426381 is an equidigital number, since it uses as much as digits as its factorization.

2426381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 2426381 is about 1557.6844995056. The cubic root of 2426381 is about 134.3753676572.

The spelling of 2426381 in words is "two million, four hundred twenty-six thousand, three hundred eighty-one".