340530225 has 24 divisors (see below), whose sum is σ = 643440960. Its totient is φ = 155670720.

The previous prime is 340530173. The next prime is 340530251. The reversal of 340530225 is 522035043.

It is not a de Polignac number, because 340530225 - 2⁹ = 340529713 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 340530195 and 340530204.

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, 323790 + ... + 324839.

It is an arithmetic number, because the mean of its divisors is an integer number (26810040).

Almost surely, 2^340530225 is an apocalyptic number.

340530225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

340530225 is a deficient number, since it is larger than the sum of its proper divisors (302910735).

340530225 is a wasteful number, since it uses less digits than its factorization.

340530225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648649 (or 648644 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 340530225 is about 18453.4610574819. The cubic root of 340530225 is about 698.3158321717.

Adding to 340530225 its reverse (522035043), we get a palindrome (862565268).

The spelling of 340530225 in words is "three hundred forty million, five hundred thirty thousand, two hundred twenty-five".