4030142 has 4 divisors (see below), whose sum is σ = 6045216. Its totient is φ = 2015070.

The previous prime is 4030141. The next prime is 4030153. The reversal of 4030142 is 2410304.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007534 + ... + 1007537.

It is an arithmetic number, because the mean of its divisors is an integer number (1511304).

Almost surely, 2^4030142 is an apocalyptic number.

4030142 is a deficient number, since it is larger than the sum of its proper divisors (2015074).

4030142 is a wasteful number, since it uses less digits than its factorization.

4030142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015073.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 4030142 is about 2007.5213572961. The cubic root of 4030142 is about 159.1378365163.

Adding to 4030142 its reverse (2410304), we get a palindrome (6440446).

The spelling of 4030142 in words is "four million, thirty thousand, one hundred forty-two".