240678223 has 2 divisors, whose sum is σ = 240678224. Its totient is φ = 240678222.

The previous prime is 240678173. The next prime is 240678283. The reversal of 240678223 is 322876042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240678223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240678283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120339111 + 120339112.

It is an arithmetic number, because the mean of its divisors is an integer number (120339112).

Almost surely, 2^240678223 is an apocalyptic number.

240678223 is a deficient number, since it is larger than the sum of its proper divisors (1).

240678223 is an equidigital number, since it uses as much as digits as its factorization.

240678223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 240678223 is about 15513.8074952605. The cubic root of 240678223 is about 622.0313385643.

The spelling of 240678223 in words is "two hundred forty million, six hundred seventy-eight thousand, two hundred twenty-three".