2078042 has 4 divisors (see below), whose sum is σ = 3117066. Its totient is φ = 1039020.

The previous prime is 2078009. The next prime is 2078051. The reversal of 2078042 is 2408702.

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., 1301881 + 776161 = 1141^2 + 881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2077999 and 2078017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519509 + ... + 519512.

2^2078042 is an apocalyptic number.

2078042 is a deficient number, since it is larger than the sum of its proper divisors (1039024).

2078042 is a wasteful number, since it uses less digits than its factorization.

2078042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039023.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2078042 is about 1441.5415359954. The cubic root of 2078042 is about 127.6100190965.

The spelling of 2078042 in words is "two million, seventy-eight thousand, forty-two".