2217028 has 12 divisors (see below), whose sum is σ = 4232592. Its totient is φ = 1007720.

The previous prime is 2217023. The next prime is 2217029. The reversal of 2217028 is 8207122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2217023) 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, 25150 + ... + 25237.

It is an arithmetic number, because the mean of its divisors is an integer number (352716).

2^2217028 is an apocalyptic number.

It is an amenable number.

2217028 is a deficient number, since it is larger than the sum of its proper divisors (2015564).

2217028 is a wasteful number, since it uses less digits than its factorization.

2217028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50402 (or 50400 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2217028 is about 1488.9687706597. The cubic root of 2217028 is about 130.3938352563.

The spelling of 2217028 in words is "two million, two hundred seventeen thousand, twenty-eight".