2042447 has 4 divisors (see below), whose sum is σ = 2228136. Its totient is φ = 1856760.

The previous prime is 2042429. The next prime is 2042449. The reversal of 2042447 is 7442402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042447 - 2¹⁶ = 1976911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042449) by changing a digit.

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, 92828 + ... + 92849.

It is an arithmetic number, because the mean of its divisors is an integer number (557034).

2^2042447 is an apocalyptic number.

2042447 is a deficient number, since it is larger than the sum of its proper divisors (185689).

2042447 is a wasteful number, since it uses less digits than its factorization.

2042447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185688.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 2042447 is about 1429.1420503225. The cubic root of 2042447 is about 126.8772037279.

Adding to 2042447 its reverse (7442402), we get a palindrome (9484849).

The spelling of 2042447 in words is "two million, forty-two thousand, four hundred forty-seven".