2104442 has 4 divisors (see below), whose sum is σ = 3156666. Its totient is φ = 1052220.

The previous prime is 2104441. The next prime is 2104483. The reversal of 2104442 is 2444012.

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

It can be written as a sum of positive squares in only one way, i.e., 1366561 + 737881 = 1169^2 + 859^2 .

It is a super-2 number, since 2×2104442² = 8857352262728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2104442.

It is not an unprimeable number, because it can be changed into a prime (2104441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526109 + ... + 526112.

2^2104442 is an apocalyptic number.

2104442 is a deficient number, since it is larger than the sum of its proper divisors (1052224).

2104442 is a wasteful number, since it uses less digits than its factorization.

2104442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052223.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2104442 is about 1450.6695006100. The cubic root of 2104442 is about 128.1481439056.

Adding to 2104442 its reverse (2444012), we get a palindrome (4548454).

The spelling of 2104442 in words is "two million, one hundred four thousand, four hundred forty-two".