340523320 has 32 divisors (see below), whose sum is σ = 806504400. Its totient is φ = 129040128.

The previous prime is 340523291. The next prime is 340523341. The reversal of 340523320 is 23325043.

It is a super-2 number, since 2×340523320² = 231912262927644800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340523291 and 340523300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223269 + ... + 224788.

Almost surely, 2^340523320 is an apocalyptic number.

It is an amenable number.

340523320 is an abundant number, since it is smaller than the sum of its proper divisors (465981080).

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

340523320 is a wasteful number, since it uses less digits than its factorization.

340523320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448087 (or 448083 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 340523320 is about 18453.2739642590. The cubic root of 340523320 is about 698.3111121761.

Adding to 340523320 its reverse (23325043), we get a palindrome (363848363).

The spelling of 340523320 in words is "three hundred forty million, five hundred twenty-three thousand, three hundred twenty".