2624381 has 2 divisors, whose sum is σ = 2624382. Its totient is φ = 2624380.

The previous prime is 2624371. The next prime is 2624387. The reversal of 2624381 is 1834262.

2624381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 1301881 = 1150^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2624381 - 2⁶ = 2624317 is a prime.

It is a super-2 number, since 2×2624381² = 13774751266322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2624381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2624387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312190 + 1312191.

It is an arithmetic number, because the mean of its divisors is an integer number (1312191).

2^2624381 is an apocalyptic number.

It is an amenable number.

2624381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2624381 is an equidigital number, since it uses as much as digits as its factorization.

2624381 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2624381 is about 1619.9941357919. The cubic root of 2624381 is about 137.9353649567.

The spelling of 2624381 in words is "two million, six hundred twenty-four thousand, three hundred eighty-one".