2215802 has 8 divisors (see below), whose sum is σ = 3342612. Its totient is φ = 1101600.

The previous prime is 2215793. The next prime is 2215823. The reversal of 2215802 is 2085122.

It can be written as a sum of positive squares in 2 ways, for example, as 1590121 + 625681 = 1261^2 + 791^2 .

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

It is a d-powerful number, because it can be written as 2² + 2⁴ + 1 + 5⁹ + 8³ + 0 + 2¹⁸ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2699 + ... + 3422.

2^2215802 is an apocalyptic number.

2215802 is a deficient number, since it is larger than the sum of its proper divisors (1126810).

2215802 is a wasteful number, since it uses less digits than its factorization.

2215802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2215802 is about 1488.5570193983. The cubic root of 2215802 is about 130.3697952173.

Adding to 2215802 its product of nonzero digits (320), we get a palindrome (2216122).

The spelling of 2215802 in words is "two million, two hundred fifteen thousand, eight hundred two".