340320432 has 20 divisors (see below), whose sum is σ = 879161240. Its totient is φ = 113440128.

The previous prime is 340320391. The next prime is 340320439. The reversal of 340320432 is 234023043.

It is a junction number, because it is equal to n+sod(n) for n = 340320399 and 340320408.

It is not an unprimeable number, because it can be changed into a prime (340320439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3544957 + ... + 3545052.

It is an arithmetic number, because the mean of its divisors is an integer number (43958062).

Almost surely, 2^340320432 is an apocalyptic number.

It is an amenable number.

340320432 is an abundant number, since it is smaller than the sum of its proper divisors (538840808).

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

340320432 is a wasteful number, since it uses less digits than its factorization.

340320432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7090020 (or 7090014 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 340320432 is about 18447.7758008926. The cubic root of 340320432 is about 698.1723971612.

Adding to 340320432 its reverse (234023043), we get a palindrome (574343475).

The spelling of 340320432 in words is "three hundred forty million, three hundred twenty thousand, four hundred thirty-two".