2042217 has 6 divisors (see below), whose sum is σ = 2949882. Its totient is φ = 1361472.

The previous prime is 2042213. The next prime is 2042221. The reversal of 2042217 is 7122402.

It is an interprime number because it is at equal distance from previous prime (2042213) and next prime (2042221).

It can be written as a sum of positive squares in only one way, i.e., 1929321 + 112896 = 1389^2 + 336^2 .

It is not a de Polignac number, because 2042217 - 2² = 2042213 is a prime.

2042217 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042217.

It is not an unprimeable number, because it can be changed into a prime (2042213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113448 + ... + 113465.

It is an arithmetic number, because the mean of its divisors is an integer number (491647).

2^2042217 is an apocalyptic number.

It is an amenable number.

2042217 is a deficient number, since it is larger than the sum of its proper divisors (907665).

2042217 is a wasteful number, since it uses less digits than its factorization.

2042217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226919 (or 226916 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2042217 is about 1429.0615801987. The cubic root of 2042217 is about 126.8724410009.

Adding to 2042217 its reverse (7122402), we get a palindrome (9164619).

The spelling of 2042217 in words is "two million, forty-two thousand, two hundred seventeen".