242407 has 4 divisors (see below), whose sum is σ = 264456. Its totient is φ = 220360.

The previous prime is 242399. The next prime is 242413. The reversal of 242407 is 704242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242407 - 2³ = 242399 is a prime.

It is a super-2 number, since 2×242407² = 117522307298, which contains 22 as substring.

It is a Duffinian number.

242407 is a modest number, since divided by 407 gives 242 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242447) 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, 11008 + ... + 11029.

It is an arithmetic number, because the mean of its divisors is an integer number (66114).

2²⁴²⁴⁰⁷ is an apocalyptic number.

242407 is a deficient number, since it is larger than the sum of its proper divisors (22049).

242407 is a wasteful number, since it uses less digits than its factorization.

242407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22048.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 242407 is about 492.3484538414. The cubic root of 242407 is about 62.3517124511.

Adding to 242407 its reverse (704242), we get a palindrome (946649).

The spelling of 242407 in words is "two hundred forty-two thousand, four hundred seven", and thus it is an iban number.