2399445 has 24 divisors (see below), whose sum is σ = 4223232. Its totient is φ = 1260000.

The previous prime is 2399407. The next prime is 2399461. The reversal of 2399445 is 5449932.

2399445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2399445 - 2⁶ = 2399381 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 2820 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (175968).

2^2399445 is an apocalyptic number.

It is an amenable number.

2399445 is a deficient number, since it is larger than the sum of its proper divisors (1823787).

2399445 is a wasteful number, since it uses less digits than its factorization.

2399445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833 (or 830 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 2399445 is about 1549.0142026463. The cubic root of 2399445 is about 133.8762687962.

The spelling of 2399445 in words is "two million, three hundred ninety-nine thousand, four hundred forty-five".