2042138 has 16 divisors (see below), whose sum is σ = 3523200. Its totient is φ = 869616.

The previous prime is 2042129. The next prime is 2042149. The reversal of 2042138 is 8312402.

It is a super-2 number, since 2×2042138² = 8340655222088, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2420 + ... + 3152.

It is an arithmetic number, because the mean of its divisors is an integer number (220200).

2^2042138 is an apocalyptic number.

2042138 is a deficient number, since it is larger than the sum of its proper divisors (1481062).

2042138 is a wasteful number, since it uses less digits than its factorization.

2042138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2042138 is about 1429.0339394150. The cubic root of 2042138 is about 126.8708050252.

The spelling of 2042138 in words is "two million, forty-two thousand, one hundred thirty-eight".