240427 has 6 divisors (see below), whose sum is σ = 264404. Its totient is φ = 218460.

The previous prime is 240421. The next prime is 240433. The reversal of 240427 is 724042.

It is an interprime number because it is at equal distance from previous prime (240421) and next prime (240433).

It is a de Polignac number, because none of the positive numbers 2^k-240427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240421) 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 5 ways as a sum of consecutive naturals, for example, 873 + ... + 1114.

2²⁴⁰⁴²⁷ is an apocalyptic number.

240427 is a deficient number, since it is larger than the sum of its proper divisors (23977).

240427 is a wasteful number, since it uses less digits than its factorization.

240427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 1998 counting only the distinct ones).

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

The square root of 240427 is about 490.3335599365. Note that the first 3 decimals coincide. The cubic root of 240427 is about 62.1814835135.

Adding to 240427 its reverse (724042), we get a palindrome (964469).

The spelling of 240427 in words is "two hundred forty thousand, four hundred twenty-seven", and thus it is an iban number.