16240427 has 8 divisors (see below), whose sum is σ = 18955776. Its totient is φ = 13623912.

The previous prime is 16240417. The next prime is 16240429. The reversal of 16240427 is 72404261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16240427 - 2⁶ = 16240363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16240396 and 16240405.

It is not an unprimeable number, because it can be changed into a prime (16240429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24353 + ... + 25010.

It is an arithmetic number, because the mean of its divisors is an integer number (2369472).

Almost surely, 2^16240427 is an apocalyptic number.

16240427 is a deficient number, since it is larger than the sum of its proper divisors (2715349).

16240427 is an equidigital number, since it uses as much as digits as its factorization.

16240427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49417.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 16240427 is about 4029.9413147092. The cubic root of 16240427 is about 253.2401028516.

Adding to 16240427 its reverse (72404261), we get a palindrome (88644688).

The spelling of 16240427 in words is "sixteen million, two hundred forty thousand, four hundred twenty-seven".