340023321 has 24 divisors (see below), whose sum is σ = 537073056. Its totient is φ = 205583040.

The previous prime is 340023293. The next prime is 340023337. The reversal of 340023321 is 123320043.

340023321 is a `hidden beast` number, since 340 + 0 + 2 + 3 + 321 = 666.

It is not a de Polignac number, because 340023321 - 2¹¹ = 340021273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 340023294 and 340023303.

It is not an unprimeable number, because it can be changed into a prime (340025321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39981 + ... + 47733.

It is an arithmetic number, because the mean of its divisors is an integer number (22378044).

Almost surely, 2^340023321 is an apocalyptic number.

It is an amenable number.

340023321 is a deficient number, since it is larger than the sum of its proper divisors (197049735).

340023321 is a wasteful number, since it uses less digits than its factorization.

340023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8213 (or 8210 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 340023321 is about 18439.7212831431. The cubic root of 340023321 is about 697.9691621365.

Adding to 340023321 its reverse (123320043), we get a palindrome (463343364).

The spelling of 340023321 in words is "three hundred forty million, twenty-three thousand, three hundred twenty-one".