340612816 has 40 divisors (see below), whose sum is σ = 701205120. Its totient is φ = 159727104.

The previous prime is 340612781. The next prime is 340612823. The reversal of 340612816 is 618216043.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 81465 + ... + 85543.

It is an arithmetic number, because the mean of its divisors is an integer number (17530128).

Almost surely, 2^340612816 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 340612816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350602560).

340612816 is an abundant number, since it is smaller than the sum of its proper divisors (360592304).

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

340612816 is a wasteful number, since it uses less digits than its factorization.

340612816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411 (or 4405 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 340612816 is about 18455.6987404975. The cubic root of 340612816 is about 698.3722832946.

Adding to 340612816 its reverse (618216043), we get a palindrome (958828859).

The spelling of 340612816 in words is "three hundred forty million, six hundred twelve thousand, eight hundred sixteen".