340343612 has 72 divisors (see below), whose sum is σ = 722681568. Its totient is φ = 139708800.

The previous prime is 340343603. The next prime is 340343657. The reversal of 340343612 is 216343043.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514562 + ... + 515222.

It is an arithmetic number, because the mean of its divisors is an integer number (10037244).

Almost surely, 2^340343612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340343612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361340784).

340343612 is an abundant number, since it is smaller than the sum of its proper divisors (382337956).

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

340343612 is a wasteful number, since it uses less digits than its factorization.

340343612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 340343612 is about 18448.4040502153. The cubic root of 340343612 is about 698.1882481722.

Adding to 340343612 its reverse (216343043), we get a palindrome (556686655).

The spelling of 340343612 in words is "three hundred forty million, three hundred forty-three thousand, six hundred twelve".