2449399 has 2 divisors, whose sum is σ = 2449400. Its totient is φ = 2449398.

The previous prime is 2449393. The next prime is 2449417. The reversal of 2449399 is 9939442.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2449399 - 2⁵ = 2449367 is a prime.

It is a super-2 number, since 2×2449399² = 11999110922402, which contains 22 as substring.

2449399 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224699 + 1224700.

It is an arithmetic number, because the mean of its divisors is an integer number (1224700).

2^2449399 is an apocalyptic number.

2449399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449399 is an equidigital number, since it uses as much as digits as its factorization.

2449399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 2449399 is about 1565.0555900670. The cubic root of 2449399 is about 134.7989508499.

The spelling of 2449399 in words is "two million, four hundred forty-nine thousand, three hundred ninety-nine".