6140042 has 4 divisors (see below), whose sum is σ = 9210066. Its totient is φ = 3070020.

The previous prime is 6140041. The next prime is 6140051. The reversal of 6140042 is 2400416.

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., 6056521 + 83521 = 2461^2 + 289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6140042.

It is not an unprimeable number, because it can be changed into a prime (6140041) by changing a digit.

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 as a sum of consecutive naturals, namely, 1535009 + ... + 1535012.

Almost surely, 2^6140042 is an apocalyptic number.

6140042 is a deficient number, since it is larger than the sum of its proper divisors (3070024).

6140042 is a wasteful number, since it uses less digits than its factorization.

6140042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070023.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 6140042 is about 2477.9108135686. The cubic root of 6140042 is about 183.1149406815.

Adding to 6140042 its reverse (2400416), we get a palindrome (8540458).

The spelling of 6140042 in words is "six million, one hundred forty thousand, forty-two".