340440142 has 24 divisors (see below), whose sum is σ = 594690120. Its totient is φ = 145741680.

The previous prime is 340440131. The next prime is 340440143. The reversal of 340440142 is 241044043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340440143) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 141792 + ... + 144172.

It is an arithmetic number, because the mean of its divisors is an integer number (24778755).

Almost surely, 2^340440142 is an apocalyptic number.

340440142 is a deficient number, since it is larger than the sum of its proper divisors (254249978).

340440142 is a wasteful number, since it uses less digits than its factorization.

340440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 3849 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 340440142 is about 18451.0200802015. The cubic root of 340440142 is about 698.2542498427.

Adding to 340440142 its reverse (241044043), we get a palindrome (581484185).

The spelling of 340440142 in words is "three hundred forty million, four hundred forty thousand, one hundred forty-two".