340632223 has 4 divisors (see below), whose sum is σ = 348940368. Its totient is φ = 332324080.

The previous prime is 340632217. The next prime is 340632239. The reversal of 340632223 is 322236043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322236043 = 1217 ⋅264779.

It is a cyclic number.

It is not a de Polignac number, because 340632223 - 2⁵ = 340632191 is a prime.

It is a super-2 number, since 2×340632223² = 232060622691843458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340632263) 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, 4154011 + ... + 4154092.

It is an arithmetic number, because the mean of its divisors is an integer number (87235092).

Almost surely, 2^340632223 is an apocalyptic number.

340632223 is a deficient number, since it is larger than the sum of its proper divisors (8308145).

340632223 is an equidigital number, since it uses as much as digits as its factorization.

340632223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308144.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 340632223 is about 18456.2245055699. The cubic root of 340632223 is about 698.3855466960.

Adding to 340632223 its reverse (322236043), we get a palindrome (662868266).

The spelling of 340632223 in words is "three hundred forty million, six hundred thirty-two thousand, two hundred twenty-three".