2042417 has 4 divisors (see below), whose sum is σ = 2199540. Its totient is φ = 1885296.

The previous prime is 2042401. The next prime is 2042419. The reversal of 2042417 is 7142402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 190096 + 1852321 = 436^2 + 1361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042417 - 2⁴ = 2042401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78542 + ... + 78567.

It is an arithmetic number, because the mean of its divisors is an integer number (549885).

2^2042417 is an apocalyptic number.

It is an amenable number.

2042417 is a deficient number, since it is larger than the sum of its proper divisors (157123).

2042417 is a wasteful number, since it uses less digits than its factorization.

2042417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157122.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2042417 is about 1429.1315544764. The cubic root of 2042417 is about 126.8765825229.

Adding to 2042417 its reverse (7142402), we get a palindrome (9184819).

The spelling of 2042417 in words is "two million, forty-two thousand, four hundred seventeen".