240623 has 2 divisors, whose sum is σ = 240624. Its totient is φ = 240622.

The previous prime is 240607. The next prime is 240631. The reversal of 240623 is 326042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240623 - 2⁴ = 240607 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120311 + 120312.

It is an arithmetic number, because the mean of its divisors is an integer number (120312).

2²⁴⁰⁶²³ is an apocalyptic number.

240623 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623 is an equidigital number, since it uses as much as digits as its factorization.

240623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 240623 is about 490.5333831657. The cubic root of 240623 is about 62.1983760428.

Adding to 240623 its reverse (326042), we get a palindrome (566665).

The spelling of 240623 in words is "two hundred forty thousand, six hundred twenty-three".