340215040 has 144 divisors (see below), whose sum is σ = 903905856. Its totient is φ = 121651200.

The previous prime is 340215017. The next prime is 340215061. The reversal of 340215040 is 40512043.

340215040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 340214999 and 340215017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027675 + ... + 1028005.

It is an arithmetic number, because the mean of its divisors is an integer number (6277124).

Almost surely, 2^340215040 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 340215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451952928).

340215040 is an abundant number, since it is smaller than the sum of its proper divisors (563690816).

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

340215040 is a wasteful number, since it uses less digits than its factorization.

340215040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 340215040 is about 18444.9190835851. The cubic root of 340215040 is about 698.1003186381.

Adding to 340215040 its reverse (40512043), we get a palindrome (380727083).

The spelling of 340215040 in words is "three hundred forty million, two hundred fifteen thousand, forty".