2042146 has 4 divisors (see below), whose sum is σ = 3063222. Its totient is φ = 1021072.

The previous prime is 2042129. The next prime is 2042149. The reversal of 2042146 is 6412402.

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., 1974025 + 68121 = 1405^2 + 261^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510535 + ... + 510538.

2^2042146 is an apocalyptic number.

2042146 is a deficient number, since it is larger than the sum of its proper divisors (1021076).

2042146 is a wasteful number, since it uses less digits than its factorization.

2042146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021075.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2042146 is about 1429.0367385060. The cubic root of 2042146 is about 126.8709706956.

Adding to 2042146 its reverse (6412402), we get a palindrome (8454548).

The spelling of 2042146 in words is "two million, forty-two thousand, one hundred forty-six".