340542012 has 24 divisors (see below), whose sum is σ = 821998800. Its totient is φ = 109599616.

The previous prime is 340542001. The next prime is 340542017. The reversal of 340542012 is 210245043.

It is a self number, because there is not a number n which added to its sum of digits gives 340542012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340542017) 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 in 7 ways as a sum of consecutive naturals, for example, 488937 + ... + 489632.

It is an arithmetic number, because the mean of its divisors is an integer number (34249950).

Almost surely, 2^340542012 is an apocalyptic number.

It is an amenable number.

340542012 is an abundant number, since it is smaller than the sum of its proper divisors (481456788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340542012 is a wasteful number, since it uses less digits than its factorization.

340542012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978605 (or 978603 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 340542012 is about 18453.7804257014. The cubic root of 340542012 is about 698.3238891694.

Adding to 340542012 its reverse (210245043), we get a palindrome (550787055).

The spelling of 340542012 in words is "three hundred forty million, five hundred forty-two thousand, twelve".