3440042 has 8 divisors (see below), whose sum is σ = 5168100. Its totient is φ = 1717344.

The previous prime is 3440029. The next prime is 3440051. The reversal of 3440042 is 2400443.

It can be written as a sum of positive squares in 2 ways, for example, as 3136441 + 303601 = 1771^2 + 551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3440042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334 + ... + 2942.

Almost surely, 2^3440042 is an apocalyptic number.

3440042 is a deficient number, since it is larger than the sum of its proper divisors (1728058).

3440042 is a wasteful number, since it uses less digits than its factorization.

3440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 3440042 is about 1854.7350215058. The cubic root of 3440042 is about 150.9574606425.

Adding to 3440042 its reverse (2400443), we get a palindrome (5840485).

The spelling of 3440042 in words is "three million, four hundred forty thousand, forty-two".