6240427 has 4 divisors (see below), whose sum is σ = 6245800. Its totient is φ = 6235056.

The previous prime is 6240419. The next prime is 6240431. The reversal of 6240427 is 7240426.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6240427 - 2³ = 6240419 is a prime.

It is a Duffinian number.

6240427 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6240407) 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, 138 + ... + 3535.

It is an arithmetic number, because the mean of its divisors is an integer number (1561450).

Almost surely, 2^6240427 is an apocalyptic number.

6240427 is a deficient number, since it is larger than the sum of its proper divisors (5373).

6240427 is a wasteful number, since it uses less digits than its factorization.

6240427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 6240427 is about 2498.0846662994. The cubic root of 6240427 is about 184.1074809189.

Subtracting 6240427 from its reverse (7240426), we obtain a palindrome (999999).

The spelling of 6240427 in words is "six million, two hundred forty thousand, four hundred twenty-seven".