240407 has 4 divisors (see below), whose sum is σ = 253080. Its totient is φ = 227736.

The previous prime is 240379. The next prime is 240421. The reversal of 240407 is 704042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704042 = 2 ⋅352021.

It is a cyclic number.

It is not a de Polignac number, because 240407 - 2⁸ = 240151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6308 + ... + 6345.

It is an arithmetic number, because the mean of its divisors is an integer number (63270).

2²⁴⁰⁴⁰⁷ is an apocalyptic number.

240407 is a deficient number, since it is larger than the sum of its proper divisors (12673).

240407 is a wasteful number, since it uses less digits than its factorization.

240407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 240407 is about 490.3131652322. The cubic root of 240407 is about 62.1797592698.

Adding to 240407 its reverse (704042), we get a palindrome (944449).

The spelling of 240407 in words is "two hundred forty thousand, four hundred seven", and thus it is an iban number.