2078449 has 2 divisors, whose sum is σ = 2078450. Its totient is φ = 2078448.

The previous prime is 2078443. The next prime is 2078473. The reversal of 2078449 is 9448702.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 207025 = 1368^2 + 455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2078449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2078443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039224 + 1039225.

It is an arithmetic number, because the mean of its divisors is an integer number (1039225).

2^2078449 is an apocalyptic number.

It is an amenable number.

2078449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078449 is an equidigital number, since it uses as much as digits as its factorization.

2078449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2078449 is about 1441.6826974061. The cubic root of 2078449 is about 127.6183496768.

The spelling of 2078449 in words is "two million, seventy-eight thousand, four hundred forty-nine".