2399642 has 8 divisors (see below), whose sum is σ = 4113696. Its totient is φ = 1028412.

The previous prime is 2399641. The next prime is 2399647. The reversal of 2399642 is 2469932.

2399642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2399641) 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 in 3 ways as a sum of consecutive naturals, for example, 85688 + ... + 85715.

It is an arithmetic number, because the mean of its divisors is an integer number (514212).

2^2399642 is an apocalyptic number.

2399642 is a deficient number, since it is larger than the sum of its proper divisors (1714054).

2399642 is a wasteful number, since it uses less digits than its factorization.

2399642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171412.

The product of its digits is 23328, while the sum is 35.

The square root of 2399642 is about 1549.0777901707. The cubic root of 2399642 is about 133.8799325466.

The spelling of 2399642 in words is "two million, three hundred ninety-nine thousand, six hundred forty-two".