2399646 has 8 divisors (see below), whose sum is σ = 4799304. Its totient is φ = 799880.

The previous prime is 2399641. The next prime is 2399647. The reversal of 2399646 is 6469932.

It is a happy number.

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

2399646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199965 + ... + 199976.

It is an arithmetic number, because the mean of its divisors is an integer number (599913).

2^2399646 is an apocalyptic number.

2399646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2399646 is a wasteful number, since it uses less digits than its factorization.

2399646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399946.

The product of its digits is 69984, while the sum is 39.

The square root of 2399646 is about 1549.0790812609. The cubic root of 2399646 is about 133.8800069354.

It can be divided in two parts, 23996 and 46, that added together give a palindrome (24042).

The spelling of 2399646 in words is "two million, three hundred ninety-nine thousand, six hundred forty-six".