3140042 has 8 divisors (see below), whose sum is σ = 4837476.
Its totient is φ = 1527552.
The previous prime is 3140041. The next prime is 3140057. The reversal of 3140042 is 2400413.
Adding to 3140042 its reverse (2400413), we get a palindrome (5540455).
It can be written as a sum of positive squares in 2 ways, for example, as 2927521 + 212521 = 1711^2 + 461^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 3139999 and 3140026.
It is not an unprimeable number, because it can be changed into a prime (3140041) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21143 + ... + 21290.
Almost surely, 23140042 is an apocalyptic number.
3140042 is a deficient number, since it is larger than the sum of its proper divisors (1697434).
3140042 is a wasteful number, since it uses less digits than its factorization.
3140042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42472.
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 3140042 is about 1772.0163656129.
The cubic root of 3140042 is about 146.4350879398.
The spelling of 3140042 in words is "three million, one hundred forty thousand, forty-two".