2642306 has 8 divisors (see below), whose sum is σ = 4100220. Its totient is φ = 1275568.

The previous prime is 2642291. The next prime is 2642323. The reversal of 2642306 is 6032462.

It can be written as a sum of positive squares in 2 ways, for example, as 2640625 + 1681 = 1625^2 + 41^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22721 + ... + 22836.

2^2642306 is an apocalyptic number.

2642306 is a deficient number, since it is larger than the sum of its proper divisors (1457914).

2642306 is a wasteful number, since it uses less digits than its factorization.

2642306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45588.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2642306 is about 1625.5171484792. The cubic root of 2642306 is about 138.2486938892.

Adding to 2642306 its reverse (6032462), we get a palindrome (8674768).

The spelling of 2642306 in words is "two million, six hundred forty-two thousand, three hundred six".