2209768 has 16 divisors (see below), whose sum is σ = 4520160. Its totient is φ = 1004400.

The previous prime is 2209763. The next prime is 2209769. The reversal of 2209768 is 8679022.

It is a super-2 number, since 2×2209768² = 9766149227648, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁵ + 2²¹ + 0 + 9² + 7³ + 6⁶ + 8⁵ .

It is not an unprimeable number, because it can be changed into a prime (2209763) 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, 12468 + ... + 12643.

It is an arithmetic number, because the mean of its divisors is an integer number (282510).

2^2209768 is an apocalyptic number.

It is an amenable number.

2209768 is an abundant number, since it is smaller than the sum of its proper divisors (2310392).

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

2209768 is a wasteful number, since it uses less digits than its factorization.

2209768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25128 (or 25124 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 2209768 is about 1486.5288426398. The cubic root of 2209768 is about 130.2513480384.

The spelling of 2209768 in words is "two million, two hundred nine thousand, seven hundred sixty-eight".