340105740 has 144 divisors (see below), whose sum is σ = 1092395808. Its totient is φ = 78753792.

The previous prime is 340105729. The next prime is 340105747. The reversal of 340105740 is 47501043.

It is a self number, because there is not a number n which added to its sum of digits gives 340105740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340105747) 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 47 ways as a sum of consecutive naturals, for example, 171394 + ... + 173366.

It is an arithmetic number, because the mean of its divisors is an integer number (7586082).

Almost surely, 2^340105740 is an apocalyptic number.

340105740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340105740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546197904).

340105740 is an abundant number, since it is smaller than the sum of its proper divisors (752290068).

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

340105740 is a wasteful number, since it uses less digits than its factorization.

340105740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2013 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 340105740 is about 18441.9559700158. The cubic root of 340105740 is about 698.0255516737.

Adding to 340105740 its reverse (47501043), we get a palindrome (387606783).

The spelling of 340105740 in words is "three hundred forty million, one hundred five thousand, seven hundred forty".