2445389 has 2 divisors, whose sum is σ = 2445390. Its totient is φ = 2445388.

The previous prime is 2445379. The next prime is 2445409. The reversal of 2445389 is 9835442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 366025 = 1442^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445389 - 2¹² = 2441293 is a prime.

It is a super-2 number, since 2×2445389² = 11959854722642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222694 + 1222695.

It is an arithmetic number, because the mean of its divisors is an integer number (1222695).

2^2445389 is an apocalyptic number.

It is an amenable number.

2445389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445389 is an equidigital number, since it uses as much as digits as its factorization.

2445389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 2445389 is about 1563.7739606478. The cubic root of 2445389 is about 134.7253492517.

It can be divided in two parts, 24453 and 89, that added together give a palindrome (24542).

The spelling of 2445389 in words is "two million, four hundred forty-five thousand, three hundred eighty-nine".